US Bridges

County Road 43 over Sand Creek

Fair

Weld County, Colorado · 0.9 MI N of CO RD 66 · Structure no. WEL043.0-066.1A

Built
1985
40 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
269
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 43 over Sand Creek is a steel stringer/multi-beam or girder carrying County Road 43 over Sand Creek in Weld County, Colorado. It was built in 1985, so it is 40 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 269 vehicles a day, roughly 67% of them trucks, projected to reach 383 by 2042. The structure is 30 ft (9.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 43
CrossesSand Creek
Location0.9 MI N of CO RD 66
RouteCounty Highway 0
Coordinates40.47747, -104.6591
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.3 US tons
Inventory rating25.9 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length30 ft (9.2 m)
Longest span28 ft (8.4 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic269 (2022)
Projected traffic383 by 2042
Trucks67%
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 43 over Sand Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is County Road 43 over Sand Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does County Road 43 over Sand Creek carry?

About 269 vehicles per day (2022 count), of which roughly 67% are trucks.

How long is County Road 43 over Sand Creek?

The structure is 30 ft (9.2 m) long with a longest span of 28 ft (8.4 m) and a deck 32 ft wide.

Who owns County Road 43 over Sand Creek?

It is owned by the County Highway Agency.