US Bridges

18th Ave over Railroad

Fair

Lauderdale County, Mississippi · Sec 18 T 6N R16E · Structure no. SA3800000000126

Built
1976
49 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
1,006 ft
3 main spans
Daily traffic
9,200
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

18th Ave over Railroad is a steel stringer/multi-beam or girder carrying 18th Ave over Railroad in Lauderdale County, Mississippi. It was built in 1976, so it is 49 years old, older 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 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 9,200 vehicles a day, roughly 8% of them trucks, projected to reach 13,710 by 2044. The structure is 1,006 ft (306.7 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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Carries18th Ave
CrossesRailroad
LocationSec 18 T 6N R16E
RouteCity Street 7230
CountyLauderdale County
StateMississippi
Coordinates32.36438, -88.69463
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.3 US tons
Inventory rating28.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+11 approach)
Design loadH 15
Structure length1,006 ft (306.7 m)
Longest span129 ft (39.3 m)
Deck width63 ft (19.2 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,200 (2024)
Projected traffic13,710 by 2044
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway 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$13 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 18th Ave over Railroad built?

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

What condition is 18th Ave over Railroad 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 January 2024.

How much traffic does 18th Ave over Railroad carry?

About 9,200 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is 18th Ave over Railroad?

The structure is 1,006 ft (306.7 m) long with a longest span of 129 ft (39.3 m) and a deck 63 ft wide.

Who owns 18th Ave over Railroad?

It is owned by the City or Municipal Highway Agency.