US Bridges

County RD 340 over North Cottonwood Creek

Good

Chaffee County, Colorado · .5 MI NW of CR 306 · Structure no. CHA340-02.30A

Built
2001
24 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
502
2022 count
Owner
County
County Highway Agency

About this bridge

County RD 340 over North Cottonwood Creek is a steel stringer/multi-beam or girder carrying County RD 340 over North Cottonwood Creek in Chaffee County, Colorado. It was built in 2001, so it is 24 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 502 vehicles a day, roughly 2% of them trucks, projected to reach 612 by 2042. The structure is 29 ft (8.8 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCounty RD 340
CrossesNorth Cottonwood Creek
Location.5 MI NW of CR 306
RouteCounty Highway 0
Coordinates38.83278, -106.18563
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.7 US tons
Inventory rating31.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span27 ft (8.1 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic502 (2022)
Projected traffic612 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 RD 340 over North Cottonwood Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is County RD 340 over North Cottonwood Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does County RD 340 over North Cottonwood Creek carry?

About 502 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County RD 340 over North Cottonwood Creek?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.1 m) and a deck 31 ft wide.

Who owns County RD 340 over North Cottonwood Creek?

It is owned by the County Highway Agency.