US Bridges

County Road 350 over Cottonwood Creek

Fair

Chaffee County, Colorado · 1.0 MI Westof SH 24 · Structure no. CHA350-01.25A

Built
1997
28 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
2,098
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 350 over Cottonwood Creek is a steel stringer/multi-beam or girder carrying County Road 350 over Cottonwood Creek in Chaffee County, Colorado. It was built in 1997, so it is 28 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 2,098 vehicles a day, roughly 5% of them trucks, projected to reach 2,560 by 2042. The structure is 30 ft (9 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 350
CrossesCottonwood Creek
Location1.0 MI Westof SH 24
RouteCounty Highway 0
CountyChaffee County
StateColorado
Coordinates38.84682, -106.15104
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.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating94.7 US tons
Inventory rating56.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9 m)
Longest span28 ft (8.4 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,098 (2022)
Projected traffic2,560 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 350 over Cottonwood Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is County Road 350 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 350 over Cottonwood Creek carry?

About 2,098 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is County Road 350 over Cottonwood Creek?

The structure is 30 ft (9 m) long with a longest span of 28 ft (8.4 m) and a deck 32 ft wide.

Who owns County Road 350 over Cottonwood Creek?

It is owned by the County Highway Agency.