US Bridges

SR 8 over Tippo Bayou

Fair

Grenada County, Mississippi · 0.3 MI E Tallahatchie Cl · Structure no. 310000802205450

Built
1955
70 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
480 ft
12 main spans
Daily traffic
1,200
2023 count
Owner
State
State Highway Agency

About this bridge

SR 8 over Tippo Bayou is a steel stringer/multi-beam or girder carrying SR 8 over Tippo Bayou in Grenada County, Mississippi. It was built in 1955, so it is 70 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 1,200 vehicles a day, roughly 14% of them trucks, projected to reach 1,400 by 2043. The structure is 480 ft (146.3 m) long and 28 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

Location

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CarriesSR 8
CrossesTippo Bayou
Location0.3 MI E Tallahatchie Cl
RouteState Highway 8
CountyGrenada County
StateMississippi
Coordinates33.76924, -90.13091
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating45.2 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans12
Design loadHS 15
Structure length480 ft (146.3 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2023)
Projected traffic1,400 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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$1,000 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 8 over Tippo Bayou built?

It was built in 1955, making it 70 years old in 2025.

What condition is SR 8 over Tippo Bayou 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 2023.

How much traffic does SR 8 over Tippo Bayou carry?

About 1,200 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 8 over Tippo Bayou?

The structure is 480 ft (146.3 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns SR 8 over Tippo Bayou?

It is owned by the State Highway Agency.