US Bridges

SH 18 over ST Francis River

Good

Craighead County, Arkansas · East Edge of Lake City · Structure no. 000000000006627

Built
1998
27 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
3,454 ft
51 main spans
Daily traffic
8,160
2018 count
Owner
State
State Highway Agency

About this bridge

SH 18 over ST Francis River is a steel continuous stringer/multi-beam or girder carrying SH 18 over ST Francis River in Craighead County, Arkansas. It was built in 1998, so it is 27 years old, younger than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,160 vehicles a day, roughly 18% of them trucks, projected to reach 9,394 by 2028. The structure is 3,454 ft (1,052.9 m) long and 73 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesSH 18
CrossesST Francis River
LocationEast Edge of Lake City
RouteState Highway 18
Coordinates35.8207, -90.43298
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans51
Design loadHS 20 + Mod
Structure length3,454 ft (1,052.9 m)
Longest span100 ft (30.5 m)
Deck width73 ft (22.2 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,160 (2018)
Projected traffic9,394 by 2028
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 18 over ST Francis River built?

It was built in 1998, making it 27 years old in 2025.

What condition is SH 18 over ST Francis River 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 June 2023.

How much traffic does SH 18 over ST Francis River carry?

About 8,160 vehicles per day (2018 count), of which roughly 18% are trucks.

How long is SH 18 over ST Francis River?

The structure is 3,454 ft (1,052.9 m) long with a longest span of 100 ft (30.5 m) and a deck 73 ft wide.

Who owns SH 18 over ST Francis River?

It is owned by the State Highway Agency.