US Bridges

SR 21 over Limestone Creek

Fair

Monroe County, Alabama · 3 Mi. N.Of Monroeville · Structure no. 009341

Built
1967
58 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete
Length
816 ft
24 main spans
Daily traffic
2,700
2013 count
Owner
State
State Highway Agency

About this bridge

SR 21 over Limestone Creek is a concrete tee beam carrying SR 21 over Limestone Creek in Monroe County, Alabama. It was built in 1967, so it is 58 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 5 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 2,700 vehicles a day, roughly 20% of them trucks, projected to reach 3,367 by 2033. The structure is 816 ft (248.7 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR 21
CrossesLimestone Creek
Location3 Mi. N.Of Monroeville
RouteState Highway 21
CountyMonroe County
StateAlabama
Coordinates31.55876, -87.29115
Functional classRural Minor Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48 US tons
Inventory rating28.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans24
Design loadHS 20
Structure length816 ft (248.7 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2013)
Projected traffic3,367 by 2033
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$5.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 21 over Limestone Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR 21 over Limestone Creek 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 October 2023.

How much traffic does SR 21 over Limestone Creek carry?

About 2,700 vehicles per day (2013 count), of which roughly 20% are trucks.

How long is SR 21 over Limestone Creek?

The structure is 816 ft (248.7 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns SR 21 over Limestone Creek?

It is owned by the State Highway Agency.