US Bridges

Stock Drive over Fortification Creek

FairPosted for load

Moffat County, Colorado · 0.2 MI West of Preese ST · Structure no. MOFSTCKDR-00.11

Built
1940
85 years old
Condition
Fair
inspected October 2023
Type
Girder and Floorbeam System
Steel
Length
67 ft
1 main span
Daily traffic
342
2023 count
Owner
County
County Highway Agency

About this bridge

Stock Drive over Fortification Creek is a steel girder and floorbeam system carrying Stock Drive over Fortification Creek in Moffat County, Colorado. It was built in 1940, so it is 85 years old, older 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. Its operating status is: posted for load restriction.

It carries about 342 vehicles a day, roughly 42% of them trucks, projected to reach 400 by 2042. The structure is 67 ft (20.5 m) long and 14 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesStock Drive
CrossesFortification Creek
Location0.2 MI West of Preese ST
RouteCounty Highway 0
CountyMoffat County
StateColorado
Coordinates40.51003, -107.53907
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.8 US tons
Inventory rating18.4 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length67 ft (20.5 m)
Longest span66 ft (20 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic342 (2023)
Projected traffic400 by 2042
Trucks42%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$375,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stock Drive over Fortification Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Stock Drive over Fortification 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 October 2023.

How much traffic does Stock Drive over Fortification Creek carry?

About 342 vehicles per day (2023 count), of which roughly 42% are trucks.

How long is Stock Drive over Fortification Creek?

The structure is 67 ft (20.5 m) long with a longest span of 66 ft (20 m) and a deck 14 ft wide.

Who owns Stock Drive over Fortification Creek?

It is owned by the County Highway Agency.