US Bridges

Nfa C899 over Ramp to Gay St/Ground

Good

Knox County, Tennessee · Just W Off Gay ST Viaduct · Structure no. 470C8990001

Built
2020
5 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
126 ft
2 main spans
Daily traffic
8,760
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa C899 over Ramp to Gay St/Ground is a prestressed concrete box beam or girders - single or spread carrying Nfa C899 over Ramp to Gay St/Ground in Knox County, Tennessee. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,760 vehicles a day, roughly 2% of them trucks, projected to reach 14,016 by 2042. The structure is 126 ft (38.4 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa C899
CrossesRamp to Gay St/Ground
LocationJust W Off Gay ST Viaduct
RouteCity Street 899
CountyKnox County
StateTennessee
Coordinates35.96837, -83.92171
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length126 ft (38.4 m)
Longest span63 ft (19.2 m)
Deck width34 ft (10.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,760 (2020)
Projected traffic14,016 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa C899 over Ramp to Gay St/Ground built?

It was built in 2020, making it 5 years old in 2025.

What condition is Nfa C899 over Ramp to Gay St/Ground 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 June 2024.

How much traffic does Nfa C899 over Ramp to Gay St/Ground carry?

About 8,760 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa C899 over Ramp to Gay St/Ground?

The structure is 126 ft (38.4 m) long with a longest span of 63 ft (19.2 m) and a deck 34 ft wide.

Who owns Nfa C899 over Ramp to Gay St/Ground?

It is owned by the City or Municipal Highway Agency.