US Bridges

County Road 56 over Crow Creek

Fair

Weld County, Colorado · 0.10 MI W of CO RD 61 · Structure no. WEL056.0_059.0A

Built
1995
30 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
49 ft
1 main span
Daily traffic
512
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 56 over Crow Creek is a steel stringer/multi-beam or girder carrying County Road 56 over Crow Creek in Weld County, Colorado. It was built in 1995, so it is 30 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 512 vehicles a day, roughly 76% of them trucks, projected to reach 728 by 2043. The structure is 49 ft (15 m) long and 36 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesCounty Road 56
CrossesCrow Creek
Location0.10 MI W of CO RD 61
RouteCounty Highway 0
Coordinates40.34873, -104.49322
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.2 US tons
Inventory rating35.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length49 ft (15 m)
Longest span47 ft (14.4 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic512 (2023)
Projected traffic728 by 2043
Trucks76%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 56 over Crow Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is County Road 56 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 56 over Crow Creek carry?

About 512 vehicles per day (2023 count), of which roughly 76% are trucks.

How long is County Road 56 over Crow Creek?

The structure is 49 ft (15 m) long with a longest span of 47 ft (14.4 m) and a deck 36 ft wide.

Who owns County Road 56 over Crow Creek?

It is owned by the County Highway Agency.