US Bridges

SR 59 NB over Boggy Branch

Fair

Baldwin County, Alabama · 0.25 MI S CO RD 10 · Structure no. 011676

Built
1976
49 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
136 ft
4 main spans
Daily traffic
17,249
2023 count
Owner
State
State Highway Agency

About this bridge

SR 59 NB over Boggy Branch is a prestressed concrete stringer/multi-beam or girder carrying SR 59 NB over Boggy Branch in Baldwin County, Alabama. It was built in 1976, so it is 49 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 17,249 vehicles a day, roughly 5% of them trucks, projected to reach 25,873 by 2043. The structure is 136 ft (41.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 59 NB
CrossesBoggy Branch
Location0.25 MI S CO RD 10
RouteState Highway 59
CountyBaldwin County
StateAlabama
Coordinates30.32992, -87.683
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 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 alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span34 ft (10.4 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,249 (2023)
Projected traffic25,873 by 2043
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$1.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 59 NB over Boggy Branch built?

It was built in 1976, making it 49 years old in 2025.

What condition is SR 59 NB over Boggy 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 December 2024.

How much traffic does SR 59 NB over Boggy Branch carry?

About 17,249 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 59 NB over Boggy Branch?

The structure is 136 ft (41.5 m) long with a longest span of 34 ft (10.4 m) and a deck 43 ft wide.

Who owns SR 59 NB over Boggy Branch?

It is owned by the State Highway Agency.