US Bridges

Nall Street over Branch

Fair

Mobile County, Alabama · 350 E Bay Shore Ave · Structure no. 004437

Built
1952
73 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
2,205
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nall Street over Branch is a concrete culvert carrying Nall Street over Branch in Mobile County, Alabama. It was built in 1952, so it is 73 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 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 2,205 vehicles a day, roughly 1% of them trucks, projected to reach 3,307 by 2044. The structure is 21 ft (6.4 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNall Street
CrossesBranch
Location350 E Bay Shore Ave
RouteCity Street 0
CountyMobile County
StateAlabama
Coordinates30.70331, -88.1051
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 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 evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length21 ft (6.4 m)
Longest span14 ft (4.3 m)
Deck width48 ft (14.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,205 (2024)
Projected traffic3,307 by 2044
Trucks1%
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$601,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nall Street over Branch built?

It was built in 1952, making it 73 years old in 2025.

What condition is Nall Street over 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 January 2024.

How much traffic does Nall Street over Branch carry?

About 2,205 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Nall Street over Branch?

The structure is 21 ft (6.4 m) long with a longest span of 14 ft (4.3 m) and a deck 48 ft wide.

Who owns Nall Street over Branch?

It is owned by the City or Municipal Highway Agency.