US Bridges

SR 18 over Meridian Creek

Good

Madison County, Tennessee · 3.01 Mi.North of Medon · Structure no. 57SR0180001

Built
2017
8 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
56 ft
3 main spans
Daily traffic
5,758
2021 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Meridian Creek is a concrete continuous culvert carrying SR 18 over Meridian Creek in Madison County, Tennessee. It was built in 2017, so it is 8 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,758 vehicles a day, roughly 10% of them trucks, projected to reach 8,082 by 2041. The structure is 56 ft (17.1 m) long and 55 ft wide. If it were closed, the detour would be 46 mi (74 km).

CarriesSR 18
CrossesMeridian Creek
Location3.01 Mi.North of Medon
RouteState Highway 18
Coordinates35.49033, -88.84492
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length56 ft (17.1 m)
Longest span16 ft (4.9 m)
Deck width55 ft (16.8 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,758 (2021)
Projected traffic8,082 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed46 mi (74 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 18 over Meridian Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is SR 18 over Meridian Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does SR 18 over Meridian Creek carry?

About 5,758 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is SR 18 over Meridian Creek?

The structure is 56 ft (17.1 m) long with a longest span of 16 ft (4.9 m) and a deck 55 ft wide.

Who owns SR 18 over Meridian Creek?

It is owned by the State Highway Agency.