US Bridges

Nfa 811 over Grays Creek

Fair

Shelby County, Tennessee · Houston Levee RD · Structure no. 790X0200001

Built
1997
28 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
349 ft
5 main spans
Daily traffic
20,134
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 811 over Grays Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa 811 over Grays Creek in Shelby County, Tennessee. It was built in 1997, so it is 28 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 20,134 vehicles a day, roughly 4% of them trucks, projected to reach 53,520 by 2041. The structure is 349 ft (106.4 m) long and 52 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 811
CrossesGrays Creek
LocationHouston Levee RD
RouteCounty Highway 811
CountyShelby County
StateTennessee
Coordinates35.17761, -89.73356
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating27.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckCorrugated steel
Main spans5
Design loadHS 20
Structure length349 ft (106.4 m)
Longest span80 ft (24.4 m)
Deck width52 ft (15.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,134 (2021)
Projected traffic53,520 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 811 over Grays Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Nfa 811 over Grays Creek 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 Nfa 811 over Grays Creek carry?

About 20,134 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Nfa 811 over Grays Creek?

The structure is 349 ft (106.4 m) long with a longest span of 80 ft (24.4 m) and a deck 52 ft wide.

Who owns Nfa 811 over Grays Creek?

It is owned by the County Highway Agency.