US Bridges

US-70/SEC20/L9.316 over 15 Mile Bayou

Good

Crittenden County, Arkansas · 3.00 MI East JCT SH 147 · Structure no. 000000000006454

Built
1994
31 years old
Condition
Good
inspected November 2024
Type
Tee Beam
Concrete
Length
120 ft
3 main spans
Daily traffic
5,700
2019 count
Owner
State
State Highway Agency

About this bridge

US-70/SEC20/L9.316 over 15 Mile Bayou is a concrete tee beam carrying US-70/SEC20/L9.316 over 15 Mile Bayou in Crittenden County, Arkansas. It was built in 1994, so it is 31 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 5,700 vehicles a day, roughly 10% of them trucks, projected to reach 6,798 by 2028. The structure is 120 ft (36.6 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS-70/SEC20/L9.316
Crosses15 Mile Bayou
Location3.00 MI East JCT SH 147
RouteU.S. Route 70
CountyCrittenden County
StateArkansas
Coordinates35.14676, -90.23603
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
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 typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width67 ft (20.5 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2019)
Projected traffic6,798 by 2028
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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-70/SEC20/L9.316 over 15 Mile Bayou built?

It was built in 1994, making it 31 years old in 2025.

What condition is US-70/SEC20/L9.316 over 15 Mile Bayou 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 November 2024.

How much traffic does US-70/SEC20/L9.316 over 15 Mile Bayou carry?

About 5,700 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is US-70/SEC20/L9.316 over 15 Mile Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 67 ft wide.

Who owns US-70/SEC20/L9.316 over 15 Mile Bayou?

It is owned by the State Highway Agency.