US Bridges

Nfa C600 over Middle Fork Creek

Fair

Davidson County, Tennessee · Overbrook Dr@ Glen Leven. · Structure no. 190B5090001

Built
1965
60 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
430
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa C600 over Middle Fork Creek is a concrete continuous culvert carrying Nfa C600 over Middle Fork Creek in Davidson County, Tennessee. It was built in 1965, so it is 60 years old, older 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 430 vehicles a day, roughly 2% of them trucks, projected to reach 688 by 2041. The structure is 27 ft (8.2 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa C600
CrossesMiddle Fork Creek
LocationOverbrook Dr@ Glen Leven.
RouteCity Street 600
Coordinates36.10002, -86.77727
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width36 ft (11 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic430 (2020)
Projected traffic688 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$16,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa C600 over Middle Fork Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nfa C600 over Middle Fork 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 June 2023.

How much traffic does Nfa C600 over Middle Fork Creek carry?

About 430 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa C600 over Middle Fork Creek?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 36 ft wide.

Who owns Nfa C600 over Middle Fork Creek?

It is owned by the City or Municipal Highway Agency.