US Bridges

Nfa A999 over Mill Creek

Good

Sevier County, Tennessee · In Pigeon Forge · Structure no. 780A9990001

Built
1996
29 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
250
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A999 over Mill Creek is a prestressed concrete box beam or girders - single or spread carrying Nfa A999 over Mill Creek in Sevier County, Tennessee. It was built in 1996, so it is 29 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 250 vehicles a day, roughly 2% of them trucks, projected to reach 400 by 2041. The structure is 36 ft (11 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A999
CrossesMill Creek
LocationIn Pigeon Forge
RouteCity Street 999
Coordinates35.79688, -83.57267
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span31 ft (9.4 m)
Deck width35 ft (10.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic400 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 A999 over Mill Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Nfa A999 over Mill Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Nfa A999 over Mill Creek carry?

About 250 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A999 over Mill Creek?

The structure is 36 ft (11 m) long with a longest span of 31 ft (9.4 m) and a deck 35 ft wide.

Who owns Nfa A999 over Mill Creek?

It is owned by the City or Municipal Highway Agency.