US Bridges

County Road 77 over Crow Creek

Fair

Weld County, Colorado · 0.4 MI N of CO RD 92 · Structure no. WEL077.0_092.0A

Built
2002
23 years old, rebuilt 2022
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
49 ft
1 main span
Daily traffic
224
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 77 over Crow Creek is a steel stringer/multi-beam or girder carrying County Road 77 over Crow Creek in Weld County, Colorado. It was built in 2002 and reconstructed in 2022, so it is 23 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 5 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 224 vehicles a day, roughly 49% of them trucks, projected to reach 318 by 2041. The structure is 49 ft (14.8 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road 77
CrossesCrow Creek
Location0.4 MI N of CO RD 92
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.66575, -104.33464
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
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.5 US tons
Inventory rating38.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length49 ft (14.8 m)
Longest span46 ft (14 m)
Deck width40 ft (12.2 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic224 (2021)
Projected traffic318 by 2041
Trucks49%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 77 over Crow Creek built?

It was built in 2002, making it 23 years old in 2025. It was reconstructed in 2022.

What condition is County Road 77 over Crow 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 77 over Crow Creek carry?

About 224 vehicles per day (2021 count), of which roughly 49% are trucks.

How long is County Road 77 over Crow Creek?

The structure is 49 ft (14.8 m) long with a longest span of 46 ft (14 m) and a deck 40 ft wide.

Who owns County Road 77 over Crow Creek?

It is owned by the County Highway Agency.