US Bridges

SR 178 over Cathey Branch

Fair

Benton County, Mississippi · 3.1 MI E Marshall Cl · Structure no. 210007800504650

Built
1937
88 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
1,500
2023 count
Owner
State
State Highway Agency

About this bridge

SR 178 over Cathey Branch is a concrete culvert carrying SR 178 over Cathey Branch in Benton County, Mississippi. It was built in 1937, so it is 88 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 1,500 vehicles a day, roughly 3% of them trucks, projected to reach 1,500 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesSR 178
CrossesCathey Branch
Location3.1 MI E Marshall Cl
RouteU.S. Route 178
CountyBenton County
StateMississippi
Coordinates34.62413, -89.24677
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.6 US tons
Inventory rating33.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic1,500 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 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 of existing bridge without deck rehabilitation
Estimated improvement cost$42 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 178 over Cathey Branch built?

It was built in 1937, making it 88 years old in 2025.

What condition is SR 178 over Cathey Branch 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 January 2023.

How much traffic does SR 178 over Cathey Branch carry?

About 1,500 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is SR 178 over Cathey Branch?

The structure is 25 ft (7.6 m) long with a longest span of 16 ft (4.9 m).

Who owns SR 178 over Cathey Branch?

It is owned by the State Highway Agency.