US Bridges

SR 18 over Hamilton Creek

Good

Hinds County, Mississippi · 8.7 MI E SR 27 · Structure no. 310001802503870

Built
1970
55 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
4,500
2023 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Hamilton Creek is a concrete slab carrying SR 18 over Hamilton Creek in Hinds County, Mississippi. It was built in 1970, so it is 55 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 4,500 vehicles a day, roughly 14% of them trucks, projected to reach 4,500 by 2043. The structure is 100 ft (30.5 m) long and 38 ft wide. If it were closed, the detour would be 41 mi (66 km).

CarriesSR 18
CrossesHamilton Creek
Location8.7 MI E SR 27
RouteState Highway 18
Coordinates32.18423, -90.49292
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.2 US tons
Inventory rating49.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (2023)
Projected traffic4,500 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41 mi (66 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$435 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 18 over Hamilton Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR 18 over Hamilton 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 May 2024.

How much traffic does SR 18 over Hamilton Creek carry?

About 4,500 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 18 over Hamilton Creek?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 38 ft wide.

Who owns SR 18 over Hamilton Creek?

It is owned by the State Highway Agency.