US Bridges

I-540 Sec 2 NB LN over Flat Rock Cr. -Craw. CO

Fair

Crawford County, Arkansas · 1.37 MI N Sebastian CO LN · Structure no. 0000000000B3956

Built
1968
57 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
122 ft
3 main spans
Daily traffic
26,000
2016 count
Owner
State
State Highway Agency

About this bridge

I-540 Sec 2 NB LN over Flat Rock Cr. -Craw. CO is a steel stringer/multi-beam or girder carrying I-540 Sec 2 NB LN over Flat Rock Cr. -Craw. CO in Crawford County, Arkansas. It was built in 1968, so it is 57 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 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 26,000 vehicles a day, roughly 11% of them trucks, projected to reach 28,453 by 2028. The structure is 122 ft (37.2 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-540 Sec 2 NB LN
CrossesFlat Rock Cr. -Craw. CO
Location1.37 MI N Sebastian CO LN
RouteInterstate 540
CountyCrawford County
StateArkansas
Coordinates35.43225, -94.32772
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable 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 length122 ft (37.2 m)
Longest span40 ft (12.2 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2016)
Projected traffic28,453 by 2028
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-540 Sec 2 NB LN over Flat Rock Cr. -Craw. CO built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-540 Sec 2 NB LN over Flat Rock Cr. -Craw. CO 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 November 2023.

How much traffic does I-540 Sec 2 NB LN over Flat Rock Cr. -Craw. CO carry?

About 26,000 vehicles per day (2016 count), of which roughly 11% are trucks.

How long is I-540 Sec 2 NB LN over Flat Rock Cr. -Craw. CO?

The structure is 122 ft (37.2 m) long with a longest span of 40 ft (12.2 m) and a deck 42 ft wide.

Who owns I-540 Sec 2 NB LN over Flat Rock Cr. -Craw. CO?

It is owned by the State Highway Agency.