US Bridges

I 40-SEC 21 WB over SH 359-SEC 1

Fair

Johnson County, Arkansas · 1.03 M W Pope CO Line · Structure no. 0000000000A3314

Built
1965
60 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
132 ft
3 main spans
Daily traffic
13,000
2018 count
Owner
State
State Highway Agency

About this bridge

I 40-SEC 21 WB over SH 359-SEC 1 is a steel stringer/multi-beam or girder carrying I 40-SEC 21 WB over SH 359-SEC 1 in Johnson County, Arkansas. It was built in 1965, so it is 60 years old, older than the Arkansas average of 45.1 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.

It carries about 13,000 vehicles a day, roughly 38% of them trucks, projected to reach 14,717 by 2028. The structure is 132 ft (40.2 m) long and 46 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI 40-SEC 21 WB
CrossesSH 359-SEC 1
Location1.03 M W Pope CO Line
RouteInterstate 40
CountyJohnson County
StateArkansas
Coordinates35.3429, -93.31526
Functional classRural Principal Arterial - Interstate

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length132 ft (40.2 m)
Longest span54 ft (16.5 m)
Deck width46 ft (13.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2018)
Projected traffic14,717 by 2028
Trucks38%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I 40-SEC 21 WB over SH 359-SEC 1 built?

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

What condition is I 40-SEC 21 WB over SH 359-SEC 1 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 March 2024.

How much traffic does I 40-SEC 21 WB over SH 359-SEC 1 carry?

About 13,000 vehicles per day (2018 count), of which roughly 38% are trucks.

How long is I 40-SEC 21 WB over SH 359-SEC 1?

The structure is 132 ft (40.2 m) long with a longest span of 54 ft (16.5 m) and a deck 46 ft wide.

Who owns I 40-SEC 21 WB over SH 359-SEC 1?

It is owned by the State Highway Agency.