US Bridges

SR 178 over Stream

Fair

Marshall County, Mississippi · 3.6 MI E SR 7 · Structure no. 310017804703410

Built
1938
87 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
2 main spans
Daily traffic
1,500
2023 count
Owner
State
State Highway Agency

About this bridge

SR 178 over Stream is a steel stringer/multi-beam or girder carrying SR 178 over Stream in Marshall County, Mississippi. It was built in 1938, so it is 87 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. Its operating status is: open, posting recommended but not legally implemented.

It carries about 1,500 vehicles a day, roughly 4% of them trucks, projected to reach 1,500 by 2043. The structure is 40 ft (12.2 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 178
CrossesStream
Location3.6 MI E SR 7
RouteState Highway 178
CountyMarshall County
StateMississippi
Coordinates34.72294, -89.41555
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating6.3 US tons
Inventory rating3.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic1,500 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$260 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 178 over Stream built?

It was built in 1938, making it 87 years old in 2025.

What condition is SR 178 over Stream 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 February 2023.

How much traffic does SR 178 over Stream carry?

About 1,500 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SR 178 over Stream?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns SR 178 over Stream?

It is owned by the State Highway Agency.