Thornton, Colorado

Thornton Uninsured Motorist Lawyers Who Put Your Own Policy to Work

The city's own safety plan says a small share of Thornton streets carries most of its deadly and serious crashes. When the driver who hit you on Washington Street, on Colorado Boulevard, or at a 120th Avenue signal had no insurance or left before anyone read a plate, the recovery has to come out of your own auto policy. We represent Thornton crash victims in UM and UIM claims against their own carriers. Serving Adams and Weld Counties from our Denver office. No fee unless we win.

No fee unless we win

Call (303) 209-9395 Get my free UM/UIM case review

It's More Than Money.

Serving Thornton from our Denver Office CGH Injury Lawyers 2701 Lawrence St., Suite 201 Denver, CO 80205 (303) 209-9395 Se habla espanol

5-star rated on Google ABOTA trial advocate on the team Built for trial No fee unless we win

Colorado law requires every auto insurer in the state to offer UM/UIM coverage equal to your bodily injury liability limits, and any rejection must be in writing by the named insured (C.R.S. 10-4-609). If you never made a valid written rejection, you may still have this coverage now.
UM coverage pays when the at-fault driver had no insurance, fled the scene, or was a phantom vehicle. UIM pays the gap when the other driver had a limit too low to cover your losses. Under C.R.S. 10-4-609(4), buying UM automatically gives you UIM.
Because you are filing against your own insurer, the same tactics used on third-party claimants get pointed at you: slow responses, low first offers, and recorded-statement traps. Knowing that going in changes how the claim plays out.
At CGH Injury Lawyers, we handle UM and UIM claims for people hurt on Thornton streets, working files in both of the counties this city sits in from our Denver office at 2701 Lawrence St., Suite 201. We pull every declarations page, confirm what coverage and endorsements actually exist, assemble the medical record from every facility that treated you, and prepare each file for arbitration or for suit in the 17th or 19th Judicial District.

Free first consultation. No fee unless we win. Call (303) 209-9395.

C.R.S. 10-4-609: what the statute requires

Every Colorado auto insurer must offer UM/UIM coverage equal to the bodily injury liability limits you buy. You can reject it, but only in writing by the named insured (C.R.S. 10-4-609).
Under C.R.S. 10-4-609(4), purchasing UM coverage automatically includes UIM coverage. They come bundled together by operation of law.
A 2007 amendment to C.R.S. 10-4-609, effective January 1, 2008, removed the provision that had let insurers reduce UIM by whatever the at-fault driver's carrier paid. Under C.R.S. 10-4-609(1)(c), the coverage sits in addition to the liability recovery and cannot be reduced by a setoff from other coverage. Whether limits from more than one vehicle or policy can be combined is a separate, fact-specific question that depends on the declarations pages, how premiums were charged, and the policy language.
A rejection that does not meet the statute's requirements is potentially invalid, which means coverage you thought you did not have may still exist. We review the rejection language before assuming there is no policy to draw from.

The four triggers: when UM/UIM applies

The at-fault driver had no liability insurance. Your UM coverage becomes the only practical recovery path when the other driver cannot pay.
Hit-and-run. The driver fled before you got a plate, or before you could identify them. Colorado treats an unidentified fleeing driver as uninsured for UM purposes.
Phantom vehicle. A driver cut you off or ran you off the road without contact. Colorado allows UM recovery in some phantom-vehicle cases, but corroborating evidence such as a witness or video is typically needed.
Underinsured driver. The other driver had coverage, but their policy limit was lower than your documented losses. Their insurer pays its available limit, and your UIM claim covers the remaining gap up to your own UIM limit.

The filing deadline and comparative fault

Colorado UM/UIM claims are governed by C.R.S. 13-80-107.5, the statute the Colorado Supreme Court applied in Pham v. State Farm, 2013 CO 17. The deadline turns on the procedural history of the underlying claim. Your policy may also impose a shorter contractual notice deadline. Missing that notice can give the insurer a defense, so it must be identified early.

Colorado follows a modified comparative negligence rule with a 50 percent bar (C.R.S. 13-21-111). If you are found less than 50 percent at fault, you recover damages reduced by your percentage of fault. If you are 50 percent or more at fault, you recover nothing. Adjusters can push your fault share higher on a UM/UIM claim, which reduces the payout, so challenging that assessment is central to protecting your recovery.

High-Risk Corridors

Washington Street, Colorado Boulevard, and the avenue grid

One central finding in the City's Vision Zero Action Plan, dated January 15, 2025, is about concentration: the plan's High Injury Network and High Risk Network covers only 6 percent of the city's streets but accounts for 64 percent of the crashes in Thornton that caused a death or serious injury. The plan sets a goal of zero fatal and serious injury crashes on the City's roads by 2040.

The plan is equally specific about how those crashes happen. It identifies nine crash profiles that together account for 70 percent of the severe crashes in Thornton, among them run-off-the-road crashes, left turn crashes at signalized intersections, red-light running crashes, and broadside or left turn crashes at unsignalized intersections and driveways.

The same document lists 69 priority intersection projects, identified from crash history and that network rather than ranked against one another. Washington Street appears on that list at 84th, 104th, 120th, and 128th Avenues, and Colorado Boulevard appears at 88th, 112th, 120th, and 136th Avenues.

That pattern reaches a UM claim in a practical way. Left turn and broadside collisions at signalized intersections produce arguments about who had the green, and a driver carrying no policy has every reason to leave before any of that gets sorted out.

Trauma Care

A Level II trauma center on Grant Street, inside the city

The Colorado Department of Public Health and Environment's published list of designated trauma facilities places HCA HealthONE Mountain Ridge at 9191 Grant Street in Thornton at Level II. That is the highest trauma designation on the state list inside the city.

Another designated facility on that same list is St Anthony North Hospital, at 14300 Orchard Parkway with a Westminster mailing address. The state list and the hospital's own material both put it at Level III.

In Colorado the state health department designates trauma levels, which is a separate process from the verification the American College of Surgeons performs. The most severe injuries may be moved on to a Level I center, and the same state list places University of Colorado Hospital on the Anschutz campus in Aurora and Denver Health Medical Center in Denver at that tier.

Having the higher-level facility inside the city shortens the ambulance ride, not the paperwork. A serious case still generates records at more than one address, and those records carry the claim from the first demand through trial, so we collect the complete chain before any demand goes out.

Courthouse

Adams County District Court (17th Judicial District), in Brighton

Personal injury cases arising in Adams County may be filed in the Adams County District Court, the 17th Judicial District, which the Colorado Judicial Branch lists at the Adams County Justice Center, 1100 Judicial Center Dr., Brighton, CO 80601. Brighton is the county seat, a drive northeast of Thornton.

A UM/UIM claim that does not resolve through negotiation or arbitration can end up in that building, with your own insurer as the named defendant rather than the driver who hit you. Colorado's venue rule allows more than one proper county, so the filing county is a decision rather than a default.

The Weld County Line

Thornton's northern edge leaves Adams County behind

The United States Census Bureau's 2020 place file lists Thornton city in both Adams County and Weld County. The Colorado Judicial Branch places Weld County in the 19th Judicial District and lists its court as the Weld County Courthouse, 901 9th Ave, Greeley, CO 80631.

So a crash address near the top of the city can point at a different clerk and a different courthouse than one near the bottom. We confirm which county the crash actually sits in before anything is filed, and we handle cases in the 17th and 19th Judicial Districts, serving our Thornton clients from our Denver office.

The Statute

C.R.S. 10-4-609

Colorado requires your insurer to offer UM/UIM coverage equal to your liability limits. We know the statute, the stacking rules, and how to read a rejection form for flaws an adjuster is not going to point out.

Bad Faith on the Table

When your insurer stalls, we have a remedy.

When an insurer unreasonably delays or denies a valid UM/UIM claim, Colorado gives you a separate statutory bad-faith cause of action under C.R.S. 10-3-1115 and 10-3-1116. We document insurer conduct from day one so that a lowball offer or unexplained delay shifts the negotiation dynamic.

Honest Case Review

We decline cases we cannot stand behind.

Not every crash produces a UM/UIM claim worth pursuing. If your fact pattern does not support one, we will tell you that in the free review rather than sign you up and let the case stall. When the law supports your claim, we fight hard.

Stacking Review

Multiple vehicles may mean multiple limits.

Whether limits from more than one vehicle or policy can be combined depends on the declarations pages, how premiums were charged, and the policy language. We pull every declarations page and every endorsement to find available limits before any demand goes out.

Trial-Ready

ABOTA member. Adams County is not a problem.

Managing Partner Kevin Cheney is a member of the American Board of Trial Advocates (ABOTA) and has served as Treasurer of the Colorado Trial Lawyers Association. Timothy G. Tarr has been recognized in The Best Lawyers in America for Personal Injury Litigation - Plaintiffs since 2023. Carriers pay attention to which firms are prepared to try a case in the Adams County District Court.

Bilingual

Hablamos espanol.

Spanish-speaking staff and attorneys serve Thornton's Spanish-speaking community. Language is never a barrier to a free case review.

No Win, No Fee

Contingency only.

You pay nothing out of pocket for legal fees. We advance costs and collect only from a settlement, verdict, or arbitration award.

Get medical care immediately

If your injuries are serious, emergency transport may take you to HCA HealthONE Mountain Ridge on Grant Street, the Level II facility on the state list, or on to a Level I center in the Denver area. Seek care even if you feel okay at the scene. Adrenaline masks injury, and a gap in medical treatment gives the insurer a pre-existing-condition argument.
Call law enforcement

A police report confirming the other driver fled the scene, had no insurance, or could not be identified is essential to a hit-and-run or uninsured UM claim. Inside the city limits, the Thornton Police Department normally takes that report. Because the city crosses a county line, write down exactly where the crash happened and ask for the report number before you leave.
Document everything at the scene

Photograph the damage, your injuries, and the crash location. Note nearby businesses with exterior cameras, dashcam footage from other vehicles, and the names of any witnesses. Retention periods vary widely from one business to the next, so identify anything that can corroborate what happened before you leave the scene.
Notify your own insurer promptly

Your UM/UIM policy may contain a contractual notice requirement shorter than the statutory deadline. Report the crash to your own carrier promptly, but do not give a recorded statement or accept any offer before speaking with us. The insurer may frame the recorded statement as routine, but it can lock you into answers before your medical picture is complete.
Pull your declarations page

Find your auto insurance declarations page. It shows your UM/UIM limits, whether you have more than one vehicle on the policy, and any endorsements. If you live in a household with other insured vehicles, stacking may be available. Bring that document to the free case review and we will map every dollar of available coverage.
Call us before the adjuster calls again

Once we are on the case, we handle all insurer communication. We confirm the at-fault driver's uninsured or underinsured status, secure the police report and any available footage, develop the full medical record before any demand goes out, and document every instance of insurer delay or lowballing for the bad-faith record. Call (303) 209-9395.

Economic damages (not limited by Colorado's non-economic cap)

Emergency care at the trauma center on Grant Street, surgery, and follow-up treatment
Future medical costs and rehabilitation
Lost wages and lost earning capacity
Out-of-pocket expenses tied to the crash and recovery

Non-economic damages

Pain and suffering
Emotional distress
Loss of enjoyment of life
Physical impairment and disfigurement, which Colorado treats as a separate category that the non-economic damages cap does not limit (C.R.S. 13-21-102.5(5))

For civil actions filed on or after January 1, 2025, Colorado caps non-economic damages such as pain and suffering at $1.5 million under C.R.S. 13-21-102.5, with inflation adjustments beginning January 1, 2028. Lower caps apply to actions filed before that date, so which cap governs is fact-specific. Economic damages such as medical bills, future care, and lost wages are not limited by that cap, though any UM/UIM recovery is still bounded by the limits on the policy you are claiming under.

Compensation for physical impairment or disfigurement is also not limited by that cap (C.R.S. 13-21-102.5(5)), which matters in serious-injury UM/UIM cases. We structure the demand to reach every available category, including bad-faith penalties when insurer conduct warrants it.

"The injuries are pre-existing"

Blanket medical authorizations reaching back many years are a common insurer request, and they can be used to argue your injuries predate the crash. We manage the scope of medical releases and work with your treating providers to document what was caused by the crash versus what existed before it.
"You were partly at fault"

Colorado's modified comparative negligence rule bars recovery if you are 50 percent or more at fault (C.R.S. 13-21-111). Adjusters can push your fault share toward the 50 percent bar, which would reduce a UM/UIM payment and eliminate it entirely at 50 percent or more. We build the liability record from the crash report, physical evidence, and witness accounts to challenge any inflated fault allocation.
"You validly rejected UM/UIM coverage"

A rejection must be in writing by the named insured to be valid under C.R.S. 10-4-609. Rejections that fail the statute's requirements can be found invalid. We review every rejection document before accepting that no UM/UIM coverage exists.
"The other driver actually had insurance"

Drivers sometimes carry expired cards, have coverage lapses, or drive vehicles insured by someone else. We independently verify the at-fault driver's insurance status through law enforcement records and direct insurer inquiry, not just the other driver's word at the scene.
Delay as a strategy

Slow document requests, file reassignments, and silence after a demand are common. When delay becomes unreasonable, Colorado's statutory bad-faith remedy under C.R.S. 10-3-1115 and 10-3-1116 becomes available. We document the timeline of insurer conduct from first notice forward so that pattern is on record.

In a UM/UIM claim, you are negotiating with your own auto carrier. Every dollar it pays comes off its books. The conflict is structural, not personal.
You may have cooperation duties under your policy, including reporting the crash promptly and providing documentation. What cooperation actually requires depends on the policy language, and reading that language carefully matters before you agree to a recorded statement or accept a fault label in the first call.
When an insurer unreasonably delays or denies a valid claim, Colorado gives you a separate cause of action under C.R.S. 10-3-1115 and 10-3-1116. A documented bad-faith record is one of the few things that reliably moves a carrier off a low number.
Most UM/UIM disputes resolve through negotiation or arbitration, which some policies require before a lawsuit can be filed. We know both tracks and use the one that fits your case best.

5-star rated on Google

I wish I could leave more than 5 stars!
Grace Macaluso, 5-star Google review

What is the difference between UM and UIM coverage in Colorado?

Uninsured motorist (UM) coverage pays when the at-fault driver had no insurance, fled the scene, or was a phantom vehicle. Underinsured motorist (UIM) coverage pays the gap when the at-fault driver's policy limit was lower than your documented losses. Both come from your own auto policy. Under C.R.S. 10-4-609(4), buying UM automatically includes UIM. A crash at a Washington Street signal with an uninsured driver triggers your own UM coverage, not the other driver's.

Does Colorado law require me to have UM/UIM coverage?

Colorado law does not require you to buy UM/UIM coverage, but every auto insurer in the state must offer it equal to your bodily injury liability limits under C.R.S. 10-4-609. A rejection must be in writing by the named insured to be valid. Rejections that fail the statute's requirements can be found invalid. Read the form itself rather than relying on memory. If you are not sure what your Thornton policy says, confirm it before assuming no coverage applies.

The driver who hit me on Washington Street fled the scene. Do I still have a claim?

Yes. A hit-and-run driver is treated as uninsured under Colorado UM coverage. Report the crash to law enforcement and to your own insurer without delay. Physical evidence, named witnesses, and dashcam footage from other vehicles all strengthen the claim, and businesses and private security systems along Washington Street or Colorado Boulevard may have footage, though retention is often short. Your policy may also contain a notice deadline shorter than the statutory filing deadline.

How long do I have to file a UM/UIM claim after a Thornton crash?

Colorado UM/UIM claims are governed by C.R.S. 13-80-107.5, the statute the Colorado Supreme Court applied in Pham v. State Farm, 2013 CO 17. The deadline turns on the procedural history of the underlying claim. Your policy may impose a shorter contractual notice deadline, and missing it can give the insurer a defense. Because the timing is fact-specific, contact a lawyer early after a crash anywhere in Adams or Weld County. An early review costs nothing and protects evidence that is still there.

Can I stack UM/UIM coverage across multiple vehicles in Colorado?

Combining UM/UIM limits across multiple vehicles or policies is fact-specific, not automatic. A 2007 amendment to C.R.S. 10-4-609, effective January 1, 2008, removed the provision that had let insurers reduce UIM by what the at-fault carrier paid, and C.R.S. 10-4-609(1)(c) bars a setoff from other coverage. The same subsection also allows a single policy issued for a single premium covering multiple vehicles to be limited to applying once per accident. Whether combining applies to your Thornton case depends on the declarations pages and the policy language.

I was crossing Colorado Boulevard on foot when an uninsured driver hit me. Does UM coverage apply?

It can. UM/UIM coverage generally follows the insured person rather than the vehicle, so a policyholder or covered household member struck while walking or cycling may be able to claim under their own auto policy, depending on its terms. Thornton's own safety plan counts pedestrian and bicyclist crashes among the four types behind most of its worst outcomes. Bring the declarations page to the free review before assuming there is nothing to claim.

Which court would hear my Thornton UM/UIM lawsuit?

Personal injury cases arising in Adams County may be filed in the Adams County District Court, the 17th Judicial District, at the Adams County Justice Center, 1100 Judicial Center Dr., Brighton, CO 80601. The United States Census Bureau lists Thornton city in both Adams County and Weld County, and the Colorado Judicial Branch places Weld County in the 19th Judicial District in Greeley. Because the defendant is your own insurer, more than one county can be proper. Some policies also require arbitration first.

How does Colorado's comparative fault rule affect my UM/UIM recovery?

Colorado follows a modified comparative negligence rule with a 50 percent bar (C.R.S. 13-21-111). If you are found less than 50 percent at fault, you can recover damages, but your award is reduced by your percentage of fault. If you are 50 percent or more at fault, you recover nothing. Adjusters can push your fault share higher, which reduces a UM/UIM payout. We build the liability record from the crash report, physical evidence, and witnesses to challenge any inflated fault allocation.

Thornton

Practice Area

Denver Money Pages

Firm

It's More Than Money.

The driver who hit you in Thornton had nothing to pay with. Your own policy does not have that excuse.

Free consultation for Thornton crash victims. No fee unless we win. Serving Adams and Weld Counties from Denver. Call (303) 209-9395.

Call (303) 209-9395 Get my free UM/UIM case review

Prefer to read first? See how Colorado UM/UIM law works statewide.

CGH Injury Lawyers · 2701 Lawrence St., Suite 201, Denver, CO 80205

Attorney Advertising. CGH Injury Lawyers.

Thornton Uninsured Motorist Lawyers Who Put Your Own Policy to Work

Colorado UM/UIM law decoded for Thornton crash victims

C.R.S. 10-4-609: what the statute requires

The four triggers: when UM/UIM applies

The filing deadline and comparative fault

Where Thornton UM/UIM crashes happen, and where your case goes

Washington Street, Colorado Boulevard, and the avenue grid

A Level II trauma center on Grant Street, inside the city

Adams County District Court (17th Judicial District), in Brighton

Thornton's northern edge leaves Adams County behind

Why Thornton victims choose CGH Injury Lawyers for UM/UIM claims

C.R.S. 10-4-609

When your insurer stalls, we have a remedy.

We decline cases we cannot stand behind.

Multiple vehicles may mean multiple limits.

ABOTA member. Adams County is not a problem.

Hablamos espanol.

Contingency only.

What to do after an uninsured or hit-and-run crash in Thornton

Get medical care immediately

Call law enforcement

Document everything at the scene

Notify your own insurer promptly

Pull your declarations page

Call us before the adjuster calls again

What compensation can Thornton UM/UIM victims recover?

Economic damages (not limited by Colorado's non-economic cap)

Non-economic damages

Defenses Thornton UM/UIM insurers use, and how we answer them

"The injuries are pre-existing"

"You were partly at fault"

"You validly rejected UM/UIM coverage"

"The other driver actually had insurance"

Delay as a strategy

Why filing against your own insurer is different

Thornton UM/UIM claims: frequently asked questions

Related pages

The driver who hit you in Thornton had nothing to pay with. Your own policy does not have that excuse.