US Bridges

County Road 76 over Elkhead Creek

Good

Routt County, Colorado · 5.4 MI N of US HWY 40 · Structure no. 107007605.40549

Built
1999
26 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
31
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 76 over Elkhead Creek is a prestressed concrete tee beam carrying County Road 76 over Elkhead Creek in Routt County, Colorado. It was built in 1999, so it is 26 years old, younger 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 31 vehicles a day, roughly 43% of them trucks, projected to reach 37 by 2042. The structure is 73 ft (22.3 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCounty Road 76
CrossesElkhead Creek
Location5.4 MI N of US HWY 40
RouteCounty Highway 0
Coordinates40.59176, -107.32113
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.3 US tons
Inventory rating40.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span70 ft (21.3 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2023)
Projected traffic37 by 2042
Trucks43%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 76 over Elkhead Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is County Road 76 over Elkhead 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 October 2024.

How much traffic does County Road 76 over Elkhead Creek carry?

About 31 vehicles per day (2023 count), of which roughly 43% are trucks.

How long is County Road 76 over Elkhead Creek?

The structure is 73 ft (22.3 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns County Road 76 over Elkhead Creek?

It is owned by the County Highway Agency.