US Bridges

IRR SR 286; FAS 31 over Bailey Wash

Fair

Pima County, Arizona · 37.3 MI S JCT SR 86 · Structure no. 01637

Built
1973
52 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
141 ft
5 main spans
Daily traffic
316
2023 count
Owner
State
State Highway Agency

About this bridge

IRR SR 286; FAS 31 over Bailey Wash is a concrete continuous slab carrying IRR SR 286; FAS 31 over Bailey Wash in Pima County, Arizona. It was built in 1973, so it is 52 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 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 316 vehicles a day, roughly 23% of them trucks, projected to reach 326 by 2042. The structure is 141 ft (43 m) long and 41 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesIRR SR 286; FAS 31
CrossesBailey Wash
Location37.3 MI S JCT SR 86
RouteState Highway 286
CountyPima County
StateArizona
Coordinates31.6025, -111.5238
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length141 ft (43 m)
Longest span30 ft (9.1 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic316 (2023)
Projected traffic326 by 2042
Trucks23%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR SR 286; FAS 31 over Bailey Wash built?

It was built in 1973, making it 52 years old in 2025.

What condition is IRR SR 286; FAS 31 over Bailey 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 January 2024.

How much traffic does IRR SR 286; FAS 31 over Bailey Wash carry?

About 316 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is IRR SR 286; FAS 31 over Bailey Wash?

The structure is 141 ft (43 m) long with a longest span of 30 ft (9.1 m) and a deck 41 ft wide.

Who owns IRR SR 286; FAS 31 over Bailey Wash?

It is owned by the State Highway Agency.