US Bridges

49th Street over I 59

Good

DeKalb County, Alabama · Jnt of I59 * 49th Street · Structure no. 019459

Built
2009
16 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
272 ft
2 main spans
Daily traffic
5,327
2023 count
Owner
State
State Highway Agency

About this bridge

49th Street over I 59 is a prestressed concrete stringer/multi-beam or girder carrying 49th Street over I 59 in DeKalb County, Alabama. It was built in 2009, so it is 16 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 5,327 vehicles a day, roughly 7% of them trucks, projected to reach 7,458 by 2043. The structure is 272 ft (82.8 m) long and 81 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries49th Street
CrossesI 59
LocationJnt of I59 * 49th Street
RouteCity Street 49
StateAlabama
Coordinates34.50506, -85.69333
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.3 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length272 ft (82.8 m)
Longest span136 ft (41.4 m)
Deck width81 ft (24.6 m)
Roadway width78 ft (23.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,327 (2023)
Projected traffic7,458 by 2043
Trucks7%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost$5.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 49th Street over I 59 built?

It was built in 2009, making it 16 years old in 2025.

What condition is 49th Street over I 59 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 November 2024.

How much traffic does 49th Street over I 59 carry?

About 5,327 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is 49th Street over I 59?

The structure is 272 ft (82.8 m) long with a longest span of 136 ft (41.4 m) and a deck 81 ft wide.

Who owns 49th Street over I 59?

It is owned by the State Highway Agency.