US Bridges

Nfa 1433 (sa 2308) over Millsfield Rd. / I155

FairPosted for load

Dyer County, Tennessee · 1.1 MI E JCT I155&SR78 · Structure no. 23I01550031

Built
1979
46 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
240 ft
2 main spans
Daily traffic
4,746
2021 count
Owner
State
State Highway Agency

About this bridge

Nfa 1433 (sa 2308) over Millsfield Rd. / I155 is a concrete continuous box beam or girders - single or spread carrying Nfa 1433 (sa 2308) over Millsfield Rd. / I155 in Dyer County, Tennessee. It was built in 1979, so it is 46 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. Its operating status is: posted for load restriction.

It carries about 4,746 vehicles a day, roughly 3% of them trucks, projected to reach 7,190 by 2042. The structure is 240 ft (73.2 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa 1433 (sa 2308)
CrossesMillsfield Rd. / I155
Location1.1 MI E JCT I155&SR78
RouteCounty Highway 1433
CountyDyer County
StateTennessee
Coordinates36.06811, -89.37936
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span120 ft (36.6 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,746 (2021)
Projected traffic7,190 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa 1433 (sa 2308) over Millsfield Rd. / I155 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Nfa 1433 (sa 2308) over Millsfield Rd. / I155 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 October 2023.

How much traffic does Nfa 1433 (sa 2308) over Millsfield Rd. / I155 carry?

About 4,746 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1433 (sa 2308) over Millsfield Rd. / I155?

The structure is 240 ft (73.2 m) long with a longest span of 120 ft (36.6 m) and a deck 46 ft wide.

Who owns Nfa 1433 (sa 2308) over Millsfield Rd. / I155?

It is owned by the State Highway Agency.