US Bridges

County Road 5 over Little Thompson River

Good

Weld County, Colorado · 0.1 MI N of CO RD 42 · Structure no. WEL005.0_042.0A

Built
2000
25 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
337
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 5 over Little Thompson River is a prestressed concrete box beam or girders - single or spread carrying County Road 5 over Little Thompson River in Weld County, Colorado. It was built in 2000, so it is 25 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 337 vehicles a day, roughly 51% of them trucks, projected to reach 478 by 2043. The structure is 68 ft (20.8 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 5
CrossesLittle Thompson River
Location0.1 MI N of CO RD 42
RouteCounty Highway 0
Coordinates40.29252, -105.01787
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating49.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length68 ft (20.8 m)
Longest span65 ft (19.9 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic337 (2023)
Projected traffic478 by 2043
Trucks51%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 5 over Little Thompson River built?

It was built in 2000, making it 25 years old in 2025.

What condition is County Road 5 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 May 2024.

How much traffic does County Road 5 over Little Thompson River carry?

About 337 vehicles per day (2023 count), of which roughly 51% are trucks.

How long is County Road 5 over Little Thompson River?

The structure is 68 ft (20.8 m) long with a longest span of 65 ft (19.9 m) and a deck 34 ft wide.

Who owns County Road 5 over Little Thompson River?

It is owned by the County Highway Agency.