US Bridges

29th Ave. over 5th Street- Mid South RR

Fair

Lauderdale County, Mississippi · Sec 18 T 6N R16E · Structure no. SA3800000000007

Built
1991
34 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
970 ft
2 main spans
Daily traffic
1,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

29th Ave. over 5th Street- Mid South RR is a prestressed concrete stringer/multi-beam or girder carrying 29th Ave. over 5th Street- Mid South RR in Lauderdale County, Mississippi. It was built in 1991, so it is 34 years old, younger than the Mississippi average of 38.9 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 1,000 vehicles a day, roughly 12% of them trucks, projected to reach 1,500 by 2043. The structure is 970 ft (295.7 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries29th Ave.
Crosses5th Street- Mid South RR
LocationSec 18 T 6N R16E
RouteCity Street 9431
Coordinates32.36053, -88.70761
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.6 US tons
Inventory rating58.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+10 approach)
Design loadH 15
Structure length970 ft (295.7 m)
Longest span110 ft (33.5 m)
Deck width68 ft (20.7 m)
Roadway width60 ft (18.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2023)
Projected traffic1,500 by 2043
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$8.5 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 29th Ave. over 5th Street- Mid South RR built?

It was built in 1991, making it 34 years old in 2025.

What condition is 29th Ave. over 5th Street- Mid South RR 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 2023.

How much traffic does 29th Ave. over 5th Street- Mid South RR carry?

About 1,000 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is 29th Ave. over 5th Street- Mid South RR?

The structure is 970 ft (295.7 m) long with a longest span of 110 ft (33.5 m) and a deck 68 ft wide.

Who owns 29th Ave. over 5th Street- Mid South RR?

It is owned by the City or Municipal Highway Agency.