US Bridges

SR 18 over Twistwood Creek

Good

Jasper County, Mississippi · 2.6 MI W Clarke Cl · Structure no. 310001803115040

Built
1980
45 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
202 ft
5 main spans
Daily traffic
750
2023 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Twistwood Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 18 over Twistwood Creek in Jasper County, Mississippi. It was built in 1980, so it is 45 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 750 vehicles a day, roughly 14% of them trucks, projected to reach 750 by 2043. The structure is 202 ft (61.6 m) long and 41 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesSR 18
CrossesTwistwood Creek
Location2.6 MI W Clarke Cl
RouteState Highway 18
Coordinates32.1047, -88.9312
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.9 US tons
Inventory rating35.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length202 ft (61.6 m)
Longest span40 ft (12.2 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2023)
Projected traffic750 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 18 over Twistwood Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is SR 18 over Twistwood Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does SR 18 over Twistwood Creek carry?

About 750 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 18 over Twistwood Creek?

The structure is 202 ft (61.6 m) long with a longest span of 40 ft (12.2 m) and a deck 41 ft wide.

Who owns SR 18 over Twistwood Creek?

It is owned by the State Highway Agency.