US Bridges

US 45 over Seaberry Creek

Fair

Mobile County, Alabama · 0.7 MI S SR 158 · Structure no. 015540

Built
1992
33 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
136 ft
4 main spans
Daily traffic
5,839
2023 count
Owner
State
State Highway Agency

About this bridge

US 45 over Seaberry Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US 45 over Seaberry Creek in Mobile County, Alabama. It was built in 1992, so it is 33 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 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 5,839 vehicles a day, roughly 9% of them trucks, projected to reach 8,759 by 2043. The structure is 136 ft (41.5 m) long and 47 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesUS 45
CrossesSeaberry Creek
Location0.7 MI S SR 158
RouteU.S. Route 45
CountyMobile County
StateAlabama
Coordinates30.79285, -88.15234
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.2 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span35 ft (10.7 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,839 (2023)
Projected traffic8,759 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 45 over Seaberry Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is US 45 over Seaberry Creek 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 July 2024.

How much traffic does US 45 over Seaberry Creek carry?

About 5,839 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is US 45 over Seaberry Creek?

The structure is 136 ft (41.5 m) long with a longest span of 35 ft (10.7 m) and a deck 47 ft wide.

Who owns US 45 over Seaberry Creek?

It is owned by the State Highway Agency.