US Bridges

Stage Coach over Little Thompson River

Good

Larimer County, Colorado · 1 Mile N of N ST Vrain DR · Structure no. LRSTAGECOACHT1

Built
2019
6 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
69 ft
1 main span
Daily traffic
331
2023 count
Owner
County
County Highway Agency

About this bridge

Stage Coach over Little Thompson River is a steel stringer/multi-beam or girder carrying Stage Coach over Little Thompson River in Larimer County, Colorado. It was built in 2019, so it is 6 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 331 vehicles a day, roughly 19% of them trucks, projected to reach 414 by 2042. The structure is 69 ft (21 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesStage Coach
CrossesLittle Thompson River
Location1 Mile N of N ST Vrain DR
RouteCounty Highway 0
Coordinates40.28786, -105.28635
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.8 US tons
Inventory rating48.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length69 ft (21 m)
Longest span65 ft (19.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic331 (2023)
Projected traffic414 by 2042
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Stage Coach over Little Thompson River built?

It was built in 2019, making it 6 years old in 2025.

What condition is Stage Coach over Little Thompson River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Stage Coach over Little Thompson River carry?

About 331 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is Stage Coach over Little Thompson River?

The structure is 69 ft (21 m) long with a longest span of 65 ft (19.8 m) and a deck 28 ft wide.

Who owns Stage Coach over Little Thompson River?

It is owned by the County Highway Agency.