US Bridges

Nfa 1400 (sa 7607) over Montgomery Fork Creek

FairPosted for load

Scott County, Tennessee · 4 MI SE of Fairiew · Structure no. 76S23440003

Built
1975
50 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
79 ft
2 main spans
Daily traffic
1,537
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1400 (sa 7607) over Montgomery Fork Creek is a steel stringer/multi-beam or girder carrying Nfa 1400 (sa 7607) over Montgomery Fork Creek in Scott County, Tennessee. It was built in 1975, so it is 50 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. Its operating status is: posted for load restriction.

It carries about 1,537 vehicles a day, roughly 3% of them trucks, projected to reach 2,459 by 2042. The structure is 79 ft (24.1 m) long and 24 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

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CarriesNfa 1400 (sa 7607)
CrossesMontgomery Fork Creek
Location4 MI SE of Fairiew
RouteCounty Highway 1400
CountyScott County
StateTennessee
Coordinates36.32845, -84.36677
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating22.2 US tons
Inventory rating17.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length79 ft (24.1 m)
Longest span58 ft (17.7 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,537 (2021)
Projected traffic2,459 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$359,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1400 (sa 7607) over Montgomery Fork Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa 1400 (sa 7607) over Montgomery Fork Creek 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 August 2024.

How much traffic does Nfa 1400 (sa 7607) over Montgomery Fork Creek carry?

About 1,537 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1400 (sa 7607) over Montgomery Fork Creek?

The structure is 79 ft (24.1 m) long with a longest span of 58 ft (17.7 m) and a deck 24 ft wide.

Who owns Nfa 1400 (sa 7607) over Montgomery Fork Creek?

It is owned by the County Highway Agency.