US Bridges

Halls Mill RD over Spring Branch

Fair

Mobile County, Alabama · 0.1 MI W Rochelle Street · Structure no. 014688

Built
1926
99 years old, rebuilt 1989
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
50 ft
4 main spans
Daily traffic
9,212
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Halls Mill RD over Spring Branch is a concrete culvert carrying Halls Mill RD over Spring Branch in Mobile County, Alabama. It was built in 1926 and reconstructed in 1989, so it is 99 years old, older 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 9,212 vehicles a day, roughly 4% of them trucks, projected to reach 13,818 by 2043. The structure is 50 ft (15.2 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHalls Mill RD
CrossesSpring Branch
Location0.1 MI W Rochelle Street
RouteCity Street 0
CountyMobile County
StateAlabama
Coordinates30.61326, -88.15426
Functional classUrban Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.1 US tons
Inventory rating30.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 20
Structure length50 ft (15.2 m)
Longest span12 ft (3.7 m)
Deck width41 ft (12.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,212 (2023)
Projected traffic13,818 by 2043
Trucks4%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$559,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Halls Mill RD over Spring Branch built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1989.

What condition is Halls Mill RD over Spring Branch 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 November 2023.

How much traffic does Halls Mill RD over Spring Branch carry?

About 9,212 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Halls Mill RD over Spring Branch?

The structure is 50 ft (15.2 m) long with a longest span of 12 ft (3.7 m) and a deck 41 ft wide.

Who owns Halls Mill RD over Spring Branch?

It is owned by the City or Municipal Highway Agency.