US Bridges

SR 18 over Snake Creek

Fair

Hinds County, Mississippi · 16.2 MI E SR 27 · Structure no. 31000180250470A

Built
1971
54 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
4,800
2023 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Snake Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 18 over Snake Creek in Hinds County, Mississippi. It was built in 1971, so it is 54 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 4,800 vehicles a day, roughly 8% of them trucks, projected to reach 4,800 by 2043. The structure is 120 ft (36.6 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 18
CrossesSnake Creek
Location16.2 MI E SR 27
RouteState Highway 18
CountyHinds County
StateMississippi
Coordinates32.25408, -90.39989
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.8 US tons
Inventory rating38.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2023)
Projected traffic4,800 by 2043
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Snake Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is SR 18 over Snake 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 Snake Creek carry?

About 4,800 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 18 over Snake Creek?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 42 ft wide.

Who owns SR 18 over Snake Creek?

It is owned by the State Highway Agency.