US Bridges

SR 178 over Chewalla Creek & Bn Rail

Good

Marshall County, Mississippi · 9.7 MI E SR 7 · Structure no. 310017804704030

Built
2014
11 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
896 ft
3 main spans
Daily traffic
1,600
2023 count
Owner
State
State Highway Agency

About this bridge

SR 178 over Chewalla Creek & Bn Rail is a prestressed concrete stringer/multi-beam or girder carrying SR 178 over Chewalla Creek & Bn Rail in Marshall County, Mississippi. It was built in 2014, so it is 11 years old, younger 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 1,600 vehicles a day, roughly 11% of them trucks, projected to reach 1,600 by 2043. The structure is 896 ft (273.2 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesSR 178
CrossesChewalla Creek & Bn Rail
Location9.7 MI E SR 7
RouteState Highway 178
CountyMarshall County
StateMississippi
Coordinates34.67327, -89.33307
Functional classRural Major Collector

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating52.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+6 approach)
Design loadHL 93
Structure length896 ft (273.2 m)
Longest span138 ft (42 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic1,600 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed6.8 mi (11 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 178 over Chewalla Creek & Bn Rail built?

It was built in 2014, making it 11 years old in 2025.

What condition is SR 178 over Chewalla Creek & Bn Rail 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 July 2023.

How much traffic does SR 178 over Chewalla Creek & Bn Rail carry?

About 1,600 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 178 over Chewalla Creek & Bn Rail?

The structure is 896 ft (273.2 m) long with a longest span of 138 ft (42 m) and a deck 33 ft wide.

Who owns SR 178 over Chewalla Creek & Bn Rail?

It is owned by the State Highway Agency.