US Bridges

County Road 338 over Cottonwood Creek

Fair

Chaffee County, Colorado · .2 MI NW of CR 306 · Structure no. CHA338-00.85A

Built
2005
20 years old
Condition
Fair
inspected March 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
25 ft
1 main span
Daily traffic
231
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 338 over Cottonwood Creek is a aluminum, wrought iron, or cast iron culvert carrying County Road 338 over Cottonwood Creek in Chaffee County, Colorado. It was built in 2005, so it is 20 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 231 vehicles a day, roughly 2% of them trucks, projected to reach 282 by 2042. The structure is 25 ft (7.5 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty Road 338
CrossesCottonwood Creek
Location.2 MI NW of CR 306
RouteCounty Highway 0
CountyChaffee County
StateColorado
Coordinates38.82625, -106.1834
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99.9 US tons
Inventory rating59.7 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length25 ft (7.5 m)
Longest span25 ft (7.5 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic231 (2022)
Projected traffic282 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 338 over Cottonwood Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is County Road 338 over Cottonwood 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 March 2024.

How much traffic does County Road 338 over Cottonwood Creek carry?

About 231 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 338 over Cottonwood Creek?

The structure is 25 ft (7.5 m) long with a longest span of 25 ft (7.5 m) and a deck 32 ft wide.

Who owns County Road 338 over Cottonwood Creek?

It is owned by the County Highway Agency.