US Bridges

County Road 79 over Oak Creek

Fair

Fremont County, Colorado · 1.8 MI E of Adams Avenue · Structure no. FRCO 79-206A

Built
1990
35 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
34 ft
1 main span
Daily traffic
90
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 79 over Oak Creek is a steel stringer/multi-beam or girder carrying County Road 79 over Oak Creek in Fremont County, Colorado. It was built in 1990, so it is 35 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 90 vehicles a day, projected to reach 101 by 2042. The structure is 34 ft (10.5 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Road 79
CrossesOak Creek
Location1.8 MI E of Adams Avenue
RouteCounty Highway 0
CountyFremont County
StateColorado
Coordinates38.39573, -105.13176
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating64.3 US tons
Inventory rating38.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length34 ft (10.5 m)
Longest span29 ft (8.7 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic101 by 2042
Trucks0%
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 79 over Oak Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is County Road 79 over Oak 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 January 2025.

How much traffic does County Road 79 over Oak Creek carry?

About 90 vehicles per day (2022 count).

How long is County Road 79 over Oak Creek?

The structure is 34 ft (10.5 m) long with a longest span of 29 ft (8.7 m) and a deck 18 ft wide.

Who owns County Road 79 over Oak Creek?

It is owned by the County Highway Agency.