US Bridges

Lincoln RD over Slate Rock Branch

Fair

Madison County, Alabama · 1.6 MI E JCT US HWY 231 · Structure no. 002071

Built
1939
86 years old
Condition
Fair
inspected July 2024
Type
Slab
Masonry
Length
33 ft
2 main spans
Daily traffic
1,636
2001 count
Owner
County
County Highway Agency

About this bridge

Lincoln RD over Slate Rock Branch is a masonry slab carrying Lincoln RD over Slate Rock Branch in Madison County, Alabama. It was built in 1939, so it is 86 years old, older 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 1,636 vehicles a day, roughly 1% of them trucks, projected to reach 1,963 by 2035. The structure is 33 ft (10.1 m) long and 22 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesLincoln RD
CrossesSlate Rock Branch
Location1.6 MI E JCT US HWY 231
RouteCounty Highway 274
CountyMadison County
StateAlabama
Coordinates34.97605, -86.55837
Functional classRural Major Collector

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialMasonry
DeckNot applicable
Main spans2
Design loadH 15
Structure length33 ft (10.1 m)
Longest span11 ft (3.4 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,636 (2001)
Projected traffic1,963 by 2035
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$266,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lincoln RD over Slate Rock Branch built?

It was built in 1939, making it 86 years old in 2025.

What condition is Lincoln RD over Slate Rock 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 July 2024.

How much traffic does Lincoln RD over Slate Rock Branch carry?

About 1,636 vehicles per day (2001 count), of which roughly 1% are trucks.

How long is Lincoln RD over Slate Rock Branch?

The structure is 33 ft (10.1 m) long with a longest span of 11 ft (3.4 m) and a deck 22 ft wide.

Who owns Lincoln RD over Slate Rock Branch?

It is owned by the County Highway Agency.