US Bridges

SR 18 over Archusa Creek

FairPosted for load

Clarke County, Mississippi · 1.1 MI E SR 145 · Structure no. 310001801216730

Built
1950
75 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
240 ft
1 main span
Daily traffic
5,100
2023 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Archusa Creek is a steel stringer/multi-beam or girder carrying SR 18 over Archusa Creek in Clarke County, Mississippi. It was built in 1950, so it is 75 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. Its operating status is: posted for load restriction.

It carries about 5,100 vehicles a day, roughly 14% of them trucks, projected to reach 5,100 by 2043. The structure is 240 ft (73.2 m) long and 29 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesSR 18
CrossesArchusa Creek
Location1.1 MI E SR 145
RouteState Highway 18
CountyClarke County
StateMississippi
Coordinates32.03944, -88.71125
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.3 US tons
Inventory rating22.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadH 15
Structure length240 ft (73.2 m)
Longest span60 ft (18.3 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2023)
Projected traffic5,100 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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$1,000 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 18 over Archusa Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is SR 18 over Archusa 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 May 2024.

How much traffic does SR 18 over Archusa Creek carry?

About 5,100 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 18 over Archusa Creek?

The structure is 240 ft (73.2 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.

Who owns SR 18 over Archusa Creek?

It is owned by the State Highway Agency.