US Bridges

Nfa 1691 (sa 3906) over Beech River

Fair

Henderson County, Tennessee · 1.5 MI S of SR20 · Structure no. 39016910001

Built
2002
23 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
416
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1691 (sa 3906) over Beech River is a prestressed concrete stringer/multi-beam or girder carrying Nfa 1691 (sa 3906) over Beech River in Henderson County, Tennessee. It was built in 2002, so it is 23 years old, younger 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 416 vehicles a day, roughly 3% of them trucks, projected to reach 656 by 2040. The structure is 100 ft (30.5 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNfa 1691 (sa 3906)
CrossesBeech River
Location1.5 MI S of SR20
RouteCounty Highway 1691
CountyHenderson County
StateTennessee
Coordinates35.60584, -88.33161
Functional classRural Minor 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span100 ft (30.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic416 (2021)
Projected traffic656 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1691 (sa 3906) over Beech River built?

It was built in 2002, making it 23 years old in 2025.

What condition is Nfa 1691 (sa 3906) over Beech River 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 2024.

How much traffic does Nfa 1691 (sa 3906) over Beech River carry?

About 416 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1691 (sa 3906) over Beech River?

The structure is 100 ft (30.5 m) long with a longest span of 100 ft (30.5 m) and a deck 30 ft wide.

Who owns Nfa 1691 (sa 3906) over Beech River?

It is owned by the County Highway Agency.