US Bridges

County Road 73 over Sand Creek

Fair

Weld County, Colorado · 0.6 MI N of CO RD 18 · Structure no. WEL073.0_018.0A

Built
2014
11 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
951
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 73 over Sand Creek is a steel stringer/multi-beam or girder carrying County Road 73 over Sand Creek in Weld County, Colorado. It was built in 2014, so it is 11 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 951 vehicles a day, roughly 45% of them trucks, projected to reach 1,350 by 2042. The structure is 38 ft (11.6 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 73
CrossesSand Creek
Location0.6 MI N of CO RD 18
RouteCounty Highway 0
CountyWeld County
StateColorado
Coordinates40.12537, -104.37631
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.
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 evaluation7: Better than 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 rating41.1 US tons
Inventory rating31.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length38 ft (11.6 m)
Longest span35 ft (10.8 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic951 (2022)
Projected traffic1,350 by 2042
Trucks45%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 73 over Sand Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is County Road 73 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 73 over Sand Creek carry?

About 951 vehicles per day (2022 count), of which roughly 45% are trucks.

How long is County Road 73 over Sand Creek?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.8 m) and a deck 32 ft wide.

Who owns County Road 73 over Sand Creek?

It is owned by the County Highway Agency.