US Bridges

County Road 72 over Willow Creek

Good

Weld County, Colorado · 0.7 MI E of CO RD 49 · Structure no. WEL072.0-049.0A

Built
1960
65 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
29
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 72 over Willow Creek is a steel stringer/multi-beam or girder carrying County Road 72 over Willow Creek in Weld County, Colorado. It was built in 1960, so it is 65 years old, older 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 29 vehicles a day, roughly 54% of them trucks, projected to reach 41 by 2043. The structure is 31 ft (9.4 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 72
CrossesWillow Creek
Location0.7 MI E of CO RD 49
RouteCounty Highway 0
Coordinates40.50775, -104.58919
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.
Superstructure7 GoodSome minor problems.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.8 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2023)
Projected traffic41 by 2043
Trucks54%
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 72 over Willow Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is County Road 72 over Willow Creek 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 72 over Willow Creek carry?

About 29 vehicles per day (2023 count), of which roughly 54% are trucks.

How long is County Road 72 over Willow Creek?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 24 ft wide.

Who owns County Road 72 over Willow Creek?

It is owned by the County Highway Agency.