US Bridges

Nfa 1114 (sa 8907) over Oakland Branch

Fair

Warren County, Tennessee · 1.1 MI from SR1 · Structure no. 89S42900017

Built
1930
95 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
709
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1114 (sa 8907) over Oakland Branch is a steel stringer/multi-beam or girder carrying Nfa 1114 (sa 8907) over Oakland Branch in Warren County, Tennessee. It was built in 1930, so it is 95 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 709 vehicles a day, roughly 3% of them trucks, projected to reach 1,085 by 2042. The structure is 30 ft (9.1 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 1114 (sa 8907)
CrossesOakland Branch
Location1.1 MI from SR1
RouteCounty Highway 1114
CountyWarren County
StateTennessee
Coordinates35.68493, -85.81752
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.6 US tons
Inventory rating33.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic709 (2021)
Projected traffic1,085 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$145,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1114 (sa 8907) over Oakland Branch built?

It was built in 1930, making it 95 years old in 2025.

What condition is Nfa 1114 (sa 8907) over Oakland Branch 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 April 2023.

How much traffic does Nfa 1114 (sa 8907) over Oakland Branch carry?

About 709 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1114 (sa 8907) over Oakland Branch?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 21 ft wide.

Who owns Nfa 1114 (sa 8907) over Oakland Branch?

It is owned by the County Highway Agency.