US Bridges

AL-171 over East Branch

Good

Marion County, Alabama · 0.5 MI S of JCT 253 · Structure no. 019893

Built
2012
13 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
180 ft
4 main spans
Daily traffic
4,157
2020 count
Owner
State
State Highway Agency

About this bridge

AL-171 over East Branch is a prestressed concrete stringer/multi-beam or girder carrying AL-171 over East Branch in Marion County, Alabama. It was built in 2012, so it is 13 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,157 vehicles a day, roughly 4% of them trucks, projected to reach 6,395 by 2041. The structure is 180 ft (54.9 m) long and 79 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesAL-171
CrossesEast Branch
Location0.5 MI S of JCT 253
RouteU.S. Route 43
CountyMarion County
StateAlabama
Coordinates33.92422, -87.81389
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating61.7 US tons
Inventory rating36.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span45 ft (13.7 m)
Deck width79 ft (24 m)
Roadway width68 ft (20.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,157 (2020)
Projected traffic6,395 by 2041
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$3.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was AL-171 over East Branch built?

It was built in 2012, making it 13 years old in 2025.

What condition is AL-171 over East 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 March 2023.

How much traffic does AL-171 over East Branch carry?

About 4,157 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is AL-171 over East Branch?

The structure is 180 ft (54.9 m) long with a longest span of 45 ft (13.7 m) and a deck 79 ft wide.

Who owns AL-171 over East Branch?

It is owned by the State Highway Agency.