US Bridges

San Man-Tiger HWY over Smelter Wash

Good

Pinal County, Arizona · 2.0 MI S JCT SR 77 · Structure no. 07714

Built
1956
69 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete Continuous
Length
64 ft
5 main spans
Daily traffic
2,965
2020 count
Owner
County
County Highway Agency

About this bridge

San Man-Tiger HWY over Smelter Wash is a concrete continuous culvert carrying San Man-Tiger HWY over Smelter Wash in Pinal County, Arizona. It was built in 1956, so it is 69 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,965 vehicles a day, roughly 10% of them trucks, projected to reach 2,975 by 2040. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesSan Man-Tiger HWY
CrossesSmelter Wash
Location2.0 MI S JCT SR 77
RouteCounty Highway 0
CountyPinal County
StateArizona
Coordinates32.64444, -110.675
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating93 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,965 (2020)
Projected traffic2,975 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 San Man-Tiger HWY over Smelter Wash built?

It was built in 1956, making it 69 years old in 2025.

What condition is San Man-Tiger HWY over Smelter Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2021.

How much traffic does San Man-Tiger HWY over Smelter Wash carry?

About 2,965 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is San Man-Tiger HWY over Smelter Wash?

The structure is 64 ft (19.5 m) long with a longest span of 12 ft (3.7 m).

Who owns San Man-Tiger HWY over Smelter Wash?

It is owned by the County Highway Agency.