US Bridges

Forgeus Avenue over Drainageway

Good

Pima County, Arizona · 0.2 MI NE JCT 36th ST · Structure no. 10300

Built
1988
37 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
300
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Forgeus Avenue over Drainageway is a concrete continuous culvert carrying Forgeus Avenue over Drainageway in Pima County, Arizona. It was built in 1988, so it is 37 years old, younger 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 300 vehicles a day, projected to reach 310 by 2042. The structure is 32 ft (9.8 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesForgeus Avenue
CrossesDrainageway
Location0.2 MI NE JCT 36th ST
RouteCity Street 0
CountyPima County
StateArizona
Coordinates32.1944, -110.9333
Functional classUrban Local

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width52 ft (15.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic310 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Forgeus Avenue over Drainageway built?

It was built in 1988, making it 37 years old in 2025.

What condition is Forgeus Avenue over Drainageway 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 May 2023.

How much traffic does Forgeus Avenue over Drainageway carry?

About 300 vehicles per day (2023 count).

How long is Forgeus Avenue over Drainageway?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 52 ft wide.

Who owns Forgeus Avenue over Drainageway?

It is owned by the City or Municipal Highway Agency.