US Bridges

Graysport Crossing over Grenada Lake

FairPosted for load

Grenada County, Mississippi · Sec 36 T23N R 6E B · Structure no. SA2200000000068

Built
1954
71 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Steel
Length
1,340 ft
1 main span
Daily traffic
840
2013 count
Owner
County
County Highway Agency

About this bridge

Graysport Crossing over Grenada Lake is a steel tee beam carrying Graysport Crossing over Grenada Lake in Grenada County, Mississippi. It was built in 1954, so it is 71 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: posted for load restriction.

It carries about 840 vehicles a day, roughly 8% of them trucks, projected to reach 1,260 by 2033. The structure is 1,340 ft (408.4 m) long and 30 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

Location

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CarriesGraysport Crossing
CrossesGrenada Lake
LocationSec 36 T23N R 6E B
RouteCounty Highway 820
CountyGrenada County
StateMississippi
Coordinates33.81589, -89.61411
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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating23.9 US tons

Structure

Structure typeTee Beam
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+36 approach)
Design loadHS 20
Structure length1,340 ft (408.4 m)
Longest span80 ft (24.4 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2013)
Projected traffic1,260 by 2033
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Graysport Crossing over Grenada Lake built?

It was built in 1954, making it 71 years old in 2025.

What condition is Graysport Crossing over Grenada Lake 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 November 2023.

How much traffic does Graysport Crossing over Grenada Lake carry?

About 840 vehicles per day (2013 count), of which roughly 8% are trucks.

How long is Graysport Crossing over Grenada Lake?

The structure is 1,340 ft (408.4 m) long with a longest span of 80 ft (24.4 m) and a deck 30 ft wide.

Who owns Graysport Crossing over Grenada Lake?

It is owned by the County Highway Agency.