US Bridges

IRR BIA RTE 15 over Anegam Wash

Fair

Pima County, Arizona · 24.3 KM N of Az HWY 86 · Structure no. 00000000000H622

Built
1979
46 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete Continuous
Length
145 ft
4 main spans
Daily traffic
1,100
2021 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 15 over Anegam Wash is a concrete continuous slab carrying IRR BIA RTE 15 over Anegam Wash in Pima County, Arizona. It was built in 1979, so it is 46 years old, younger 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 1,100 vehicles a day, roughly 4% of them trucks, projected to reach 1,320 by 2043. The structure is 145 ft (44.2 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesIRR BIA RTE 15
CrossesAnegam Wash
Location24.3 KM N of Az HWY 86
RouteFederal Lands Road 15
CountyPima County
StateArizona
Coordinates32.36583, -112.05158
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.6 US tons
Inventory rating39.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span39 ft (11.9 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2021)
Projected traffic1,320 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
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 IRR BIA RTE 15 over Anegam Wash built?

It was built in 1979, making it 46 years old in 2025.

What condition is IRR BIA RTE 15 over Anegam 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 2023.

How much traffic does IRR BIA RTE 15 over Anegam Wash carry?

About 1,100 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is IRR BIA RTE 15 over Anegam Wash?

The structure is 145 ft (44.2 m) long with a longest span of 39 ft (11.9 m) and a deck 37 ft wide.

Who owns IRR BIA RTE 15 over Anegam Wash?

It is owned by the Bureau of Indian Affairs.