US Bridges

SR 87 over Pima Lateral Canal

Fair

Pinal County, Arizona · 18 MI N JCT I-10 · Structure no. 00281

Built
1928
97 years old, rebuilt 1963
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
44 ft
2 main spans
Daily traffic
15,215
2022 count
Owner
State
State Highway Agency

About this bridge

SR 87 over Pima Lateral Canal is a concrete slab carrying SR 87 over Pima Lateral Canal in Pinal County, Arizona. It was built in 1928 and reconstructed in 1963, so it is 97 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 15,215 vehicles a day, roughly 6% of them trucks, projected to reach 38,250 by 2042. The structure is 44 ft (13.4 m) long and 76 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesSR 87
CrossesPima Lateral Canal
Location18 MI N JCT I-10
RouteState Highway 87
CountyPinal County
StateArizona
Coordinates32.9915, -111.524
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span22 ft (6.7 m)
Deck width76 ft (23.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,215 (2022)
Projected traffic38,250 by 2042
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemYes

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 SR 87 over Pima Lateral Canal built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1963.

What condition is SR 87 over Pima Lateral Canal 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 February 2024.

How much traffic does SR 87 over Pima Lateral Canal carry?

About 15,215 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR 87 over Pima Lateral Canal?

The structure is 44 ft (13.4 m) long with a longest span of 22 ft (6.7 m) and a deck 76 ft wide.

Who owns SR 87 over Pima Lateral Canal?

It is owned by the State Highway Agency.