US Bridges

County Road 17 over Sand Arroyo

Fair

Baca County, Colorado · 0.1 MI S of CR R · Structure no. BA17-17-13.8-45

Built
1935
90 years old, rebuilt 1975
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
56 ft
2 main spans
Daily traffic
32
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 17 over Sand Arroyo is a steel continuous stringer/multi-beam or girder carrying County Road 17 over Sand Arroyo in Baca County, Colorado. It was built in 1935 and reconstructed in 1975, so it is 90 years old, older 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 32 vehicles a day, projected to reach 42 by 2042. The structure is 56 ft (17.2 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 17
CrossesSand Arroyo
Location0.1 MI S of CR R
RouteCounty Highway 0
CountyBaca County
StateColorado
Coordinates37.20483, -102.77815
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating28.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length56 ft (17.2 m)
Longest span26 ft (7.9 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32 (2022)
Projected traffic42 by 2042
Trucks0%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 17 over Sand Arroyo built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1975.

What condition is County Road 17 over Sand Arroyo 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 April 2024.

How much traffic does County Road 17 over Sand Arroyo carry?

About 32 vehicles per day (2022 count).

How long is County Road 17 over Sand Arroyo?

The structure is 56 ft (17.2 m) long with a longest span of 26 ft (7.9 m) and a deck 26 ft wide.

Who owns County Road 17 over Sand Arroyo?

It is owned by the County Highway Agency.