US Bridges

Nfa E008 (sa 3327) over Wilkerson Branch

Good

Hamilton County, Tennessee · In City of Collegedale · Structure no. 33022010003

Built
1960
65 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
1,120
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa E008 (sa 3327) over Wilkerson Branch is a concrete continuous culvert carrying Nfa E008 (sa 3327) over Wilkerson Branch in Hamilton County, Tennessee. It was built in 1960, so it is 65 years old, older 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 1,120 vehicles a day, roughly 1% of them trucks, projected to reach 1,792 by 2040. The structure is 22 ft (6.7 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa E008 (sa 3327)
CrossesWilkerson Branch
LocationIn City of Collegedale
RouteCity Street 8
CountyHamilton County
StateTennessee
Coordinates35.05372, -85.04964
Functional classUrban Local

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating82.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width37 ft (11.3 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,120 (2020)
Projected traffic1,792 by 2040
Trucks1%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa E008 (sa 3327) over Wilkerson Branch built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa E008 (sa 3327) over Wilkerson Branch 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 February 2024.

How much traffic does Nfa E008 (sa 3327) over Wilkerson Branch carry?

About 1,120 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa E008 (sa 3327) over Wilkerson Branch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 37 ft wide.

Who owns Nfa E008 (sa 3327) over Wilkerson Branch?

It is owned by the City or Municipal Highway Agency.