US Bridges

US70/SEC-19/L17.73 over Allen Bayou

Fair

St. Francis County, Arkansas · 2.00 MI SW JCT of SH 149 · Structure no. 000000000001372

Built
1930
95 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
69 ft
2 main spans
Daily traffic
1,200
2019 count
Owner
State
State Highway Agency

About this bridge

US70/SEC-19/L17.73 over Allen Bayou is a concrete tee beam carrying US70/SEC-19/L17.73 over Allen Bayou in St. Francis County, Arkansas. It was built in 1930, so it is 95 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 1,200 vehicles a day, roughly 18% of them trucks, projected to reach 1,573 by 2028. The structure is 69 ft (21 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS70/SEC-19/L17.73
CrossesAllen Bayou
Location2.00 MI SW JCT of SH 149
RouteU.S. Route 70
CountySt. Francis County
StateArkansas
Coordinates35.12599, -90.52351
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 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 rating42 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length69 ft (21 m)
Longest span34 ft (10.5 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2019)
Projected traffic1,573 by 2028
Trucks18%
Lanes on structure2
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$314,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US70/SEC-19/L17.73 over Allen Bayou built?

It was built in 1930, making it 95 years old in 2025.

What condition is US70/SEC-19/L17.73 over Allen 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 October 2024.

How much traffic does US70/SEC-19/L17.73 over Allen Bayou carry?

About 1,200 vehicles per day (2019 count), of which roughly 18% are trucks.

How long is US70/SEC-19/L17.73 over Allen Bayou?

The structure is 69 ft (21 m) long with a longest span of 34 ft (10.5 m) and a deck 30 ft wide.

Who owns US70/SEC-19/L17.73 over Allen Bayou?

It is owned by the State Highway Agency.