US Bridges

County Road 24A over Dallas Creek

Fair

Ouray County, Colorado · 0.2 MI S of SH 62 · Structure no. OUR24A-0.9-17

Built
2000
25 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
1,308
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 24A over Dallas Creek is a steel stringer/multi-beam or girder carrying County Road 24A over Dallas Creek in Ouray County, Colorado. It was built in 2000, so it is 25 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 1,308 vehicles a day, roughly 2% of them trucks, projected to reach 1,438 by 2042. The structure is 44 ft (13.4 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 24A
CrossesDallas Creek
Location0.2 MI S of SH 62
RouteCounty Highway 0
CountyOuray County
StateColorado
Coordinates38.17236, -107.77808
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating106.2 US tons
Inventory rating63.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,308 (2022)
Projected traffic1,438 by 2042
Trucks2%
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 24A over Dallas Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is County Road 24A over Dallas 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 County Road 24A over Dallas Creek carry?

About 1,308 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 24A over Dallas Creek?

The structure is 44 ft (13.4 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns County Road 24A over Dallas Creek?

It is owned by the County Highway Agency.