US Bridges

US 45 over Drinking Branch

Good

Mobile County, Alabama · 4.2 MI N CO RD 63 · Structure no. 015543

Built
1992
33 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
7,480
2023 count
Owner
State
State Highway Agency

About this bridge

US 45 over Drinking Branch is a concrete culvert carrying US 45 over Drinking Branch 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 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 7,480 vehicles a day, roughly 8% of them trucks, projected to reach 11,220 by 2043. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 21.1 mi (34 km).

CarriesUS 45
CrossesDrinking Branch
Location4.2 MI N CO RD 63
RouteU.S. Route 45
StateAlabama
Coordinates30.9718, -88.23895
Functional classUrban Other Principal Arterial

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,480 (2023)
Projected traffic11,220 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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$883,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 45 over Drinking Branch built?

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

What condition is US 45 over Drinking Branch 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 September 2024.

How much traffic does US 45 over Drinking Branch carry?

About 7,480 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 45 over Drinking Branch?

The structure is 35 ft (10.7 m) long with a longest span of 11 ft (3.3 m).

Who owns US 45 over Drinking Branch?

It is owned by the State Highway Agency.