US Bridges

FAP 109 over Donoho Branch

Fair

Sumner County, Tennessee · In Portland · Structure no. 83SR0520027

Built
1941
84 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
18,956
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 109 over Donoho Branch is a concrete continuous culvert carrying FAP 109 over Donoho Branch in Sumner County, Tennessee. It was built in 1941, so it is 84 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 5 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 18,956 vehicles a day, roughly 9% of them trucks, projected to reach 30,880 by 2040. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesFAP 109
CrossesDonoho Branch
LocationIn Portland
RouteState Highway SR109
CountySumner County
StateTennessee
Coordinates36.57815, -86.51538
Functional classUrban Other Principal Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length26 ft (7.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,956 (2021)
Projected traffic30,880 by 2040
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$359,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 109 over Donoho Branch built?

It was built in 1941, making it 84 years old in 2025.

What condition is FAP 109 over Donoho 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 September 2024.

How much traffic does FAP 109 over Donoho Branch carry?

About 18,956 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 109 over Donoho Branch?

The structure is 26 ft (7.9 m) long with a longest span of 10 ft (3 m).

Who owns FAP 109 over Donoho Branch?

It is owned by the State Highway Agency.