US Bridges

US-79/SEC-16/L9.30 over Cow Bayou

Fair

Lee County, Arkansas · 9.0 Miles NE of JCT SH 1 · Structure no. 000000000005951

Built
1983
42 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
420 ft
8 main spans
Daily traffic
1,900
2019 count
Owner
State
State Highway Agency

About this bridge

US-79/SEC-16/L9.30 over Cow Bayou is a steel continuous stringer/multi-beam or girder carrying US-79/SEC-16/L9.30 over Cow Bayou in Lee County, Arkansas. It was built in 1983, so it is 42 years old, younger 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 1,900 vehicles a day, roughly 1% of them trucks, projected to reach 1,936 by 2028. The structure is 420 ft (128 m) long and 43 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesUS-79/SEC-16/L9.30
CrossesCow Bayou
Location9.0 Miles NE of JCT SH 1
RouteU.S. Route 79
CountyLee County
StateArkansas
Coordinates34.84241, -90.6401
Functional classRural Principal Arterial - Other

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length420 ft (128 m)
Longest span55 ft (16.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2019)
Projected traffic1,936 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 km)
TollOn a free road
National Highway SystemYes

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 US-79/SEC-16/L9.30 over Cow Bayou built?

It was built in 1983, making it 42 years old in 2025.

What condition is US-79/SEC-16/L9.30 over Cow Bayou 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 September 2024.

How much traffic does US-79/SEC-16/L9.30 over Cow Bayou carry?

About 1,900 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is US-79/SEC-16/L9.30 over Cow Bayou?

The structure is 420 ft (128 m) long with a longest span of 55 ft (16.8 m) and a deck 43 ft wide.

Who owns US-79/SEC-16/L9.30 over Cow Bayou?

It is owned by the State Highway Agency.