US Bridges

Nfa B846 over Whittemore Branch

PoorPosted for load

Davidson County, Tennessee · In Nashville · Structure no. 190E2790001

Built
1970
55 years old
Condition
Poor
inspected August 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
600
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa B846 over Whittemore Branch is a concrete continuous culvert carrying Nfa B846 over Whittemore Branch in Davidson County, Tennessee. It was built in 1970, so it is 55 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 600 vehicles a day, roughly 2% of them trucks, projected to reach 960 by 2041. The structure is 27 ft (8.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa B846
CrossesWhittemore Branch
LocationIn Nashville
RouteCity Street 846
CountyDavidson County
StateTennessee
Coordinates36.04335, -86.70333
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width43 ft (13.2 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2020)
Projected traffic960 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$592,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B846 over Whittemore Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa B846 over Whittemore Branch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does Nfa B846 over Whittemore Branch carry?

About 600 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B846 over Whittemore Branch?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 43 ft wide.

Who owns Nfa B846 over Whittemore Branch?

It is owned by the City or Municipal Highway Agency.