US Bridges

SR 188 over Fish Bone Wash

Fair

Gila County, Arizona · 10.9 MI E JCT SR 188 · Structure no. 06235

Built
1972
53 years old, rebuilt 2004
Condition
Fair
inspected March 2022
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
1,057
2020 count
Owner
State
State Highway Agency

About this bridge

SR 188 over Fish Bone Wash is a concrete continuous culvert carrying SR 188 over Fish Bone Wash in Gila County, Arizona. It was built in 1972 and reconstructed in 2004, so it is 53 years old, older than the Arizona average of 47.8 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 1,057 vehicles a day, roughly 27% of them trucks, projected to reach 1,067 by 2040. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesSR 188
CrossesFish Bone Wash
Location10.9 MI E JCT SR 188
RouteState Highway 188
CountyGila County
StateArizona
Coordinates33.6117, -111.0163
Functional classRural Major 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating82 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,057 (2020)
Projected traffic1,067 by 2040
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 188 over Fish Bone Wash built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2004.

What condition is SR 188 over Fish Bone Wash 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 2022.

How much traffic does SR 188 over Fish Bone Wash carry?

About 1,057 vehicles per day (2020 count), of which roughly 27% are trucks.

How long is SR 188 over Fish Bone Wash?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns SR 188 over Fish Bone Wash?

It is owned by the State Highway Agency.