US Bridges

Garrison Ave over Toulmin Springs

Fair

Mobile County, Alabama · 0.3 MI E US 45 · Structure no. 011207

Built
1974
51 years old
Condition
Fair
inspected January 2024
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
904
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Garrison Ave over Toulmin Springs is a concrete channel beam carrying Garrison Ave over Toulmin Springs in Mobile County, Alabama. It was built in 1974, so it is 51 years old, younger than the Alabama average of 51.1 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 904 vehicles a day, projected to reach 1,347 by 2044. The structure is 31 ft (9.4 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesGarrison Ave
CrossesToulmin Springs
Location0.3 MI E US 45
RouteCity Street 0
CountyMobile County
StateAlabama
Coordinates30.73402, -88.09625
Functional classUrban Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.6 US tons
Inventory rating30.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic904 (2024)
Projected traffic1,347 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$293,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Garrison Ave over Toulmin Springs built?

It was built in 1974, making it 51 years old in 2025.

What condition is Garrison Ave over Toulmin Springs 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 Garrison Ave over Toulmin Springs carry?

About 904 vehicles per day (2024 count).

How long is Garrison Ave over Toulmin Springs?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns Garrison Ave over Toulmin Springs?

It is owned by the City or Municipal Highway Agency.