US Bridges

County Road 175 over Arkansas River

Fair

Chaffee County, Colorado · 300 Feet NE of SH 291 · Structure no. CHA175-00.35A

Built
1994
31 years old
Condition
Fair
inspected March 2024
Type
Truss - Thru
Steel
Length
171 ft
1 main span
Daily traffic
1,099
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 175 over Arkansas River is a steel truss - thru carrying County Road 175 over Arkansas River in Chaffee County, Colorado. It was built in 1994, so it is 31 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 1,099 vehicles a day, roughly 2% of them trucks, projected to reach 1,340 by 2042. The structure is 171 ft (52.1 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty Road 175
CrossesArkansas River
Location300 Feet NE of SH 291
RouteCounty Highway 0
CountyChaffee County
StateColorado
Coordinates38.54433, -106.00627
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.4 US tons
Inventory rating32 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1 (+2 approach)
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span88 ft (26.8 m)
Deck width34 ft (10.4 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,099 (2022)
Projected traffic1,340 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 175 over Arkansas River built?

It was built in 1994, making it 31 years old in 2025.

What condition is County Road 175 over Arkansas River 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 175 over Arkansas River carry?

About 1,099 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 175 over Arkansas River?

The structure is 171 ft (52.1 m) long with a longest span of 88 ft (26.8 m) and a deck 34 ft wide.

Who owns County Road 175 over Arkansas River?

It is owned by the County Highway Agency.