US Bridges

Nfa 907 (sa 0302) over Mcillwain Rd. / I-40

Fair

Benton County, Tennessee · 1.3 MI NE JCT I40& SR 69 · Structure no. 03I00400003

Built
1965
60 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete Continuous
Length
240 ft
4 main spans
Daily traffic
231
2021 count
Owner
State
State Highway Agency

About this bridge

Nfa 907 (sa 0302) over Mcillwain Rd. / I-40 is a concrete continuous tee beam carrying Nfa 907 (sa 0302) over Mcillwain Rd. / I-40 in Benton County, Tennessee. It was built in 1965, so it is 60 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.

It carries about 231 vehicles a day, projected to reach 370 by 2042. The structure is 240 ft (73.2 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa 907 (sa 0302)
CrossesMcillwain Rd. / I-40
Location1.3 MI NE JCT I40& SR 69
RouteCounty Highway 907
CountyBenton County
StateTennessee
Coordinates35.85197, -88.06392
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span69 ft (21 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic231 (2021)
Projected traffic370 by 2042
Trucks0%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa 907 (sa 0302) over Mcillwain Rd. / I-40 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nfa 907 (sa 0302) over Mcillwain Rd. / I-40 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 February 2024.

How much traffic does Nfa 907 (sa 0302) over Mcillwain Rd. / I-40 carry?

About 231 vehicles per day (2021 count).

How long is Nfa 907 (sa 0302) over Mcillwain Rd. / I-40?

The structure is 240 ft (73.2 m) long with a longest span of 69 ft (21 m) and a deck 29 ft wide.

Who owns Nfa 907 (sa 0302) over Mcillwain Rd. / I-40?

It is owned by the State Highway Agency.