US Bridges

Nfa 1203 over Southern Railway

Good

Roane County, Tennessee · 1 Mile NE of HWY 70 · Structure no. 73012030001

Built
2005
20 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
198 ft
3 main spans
Daily traffic
288
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1203 over Southern Railway is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa 1203 over Southern Railway in Roane County, Tennessee. It was built in 2005, so it is 20 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 288 vehicles a day, roughly 3% of them trucks, projected to reach 421 by 2041. The structure is 198 ft (60.4 m) long and 47 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesNfa 1203
CrossesSouthern Railway
Location1 Mile NE of HWY 70
RouteCounty Highway 1203
CountyRoane County
StateTennessee
Coordinates35.87774, -84.67126
Functional classUrban Collector

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length198 ft (60.4 m)
Longest span75 ft (23 m)
Deck width47 ft (14.3 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic288 (2021)
Projected traffic421 by 2041
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed2.5 mi (4 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa 1203 over Southern Railway built?

It was built in 2005, making it 20 years old in 2025.

What condition is Nfa 1203 over Southern Railway 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 March 2023.

How much traffic does Nfa 1203 over Southern Railway carry?

About 288 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1203 over Southern Railway?

The structure is 198 ft (60.4 m) long with a longest span of 75 ft (23 m) and a deck 47 ft wide.

Who owns Nfa 1203 over Southern Railway?

It is owned by the County Highway Agency.