US Bridges

SH 146-01 Lm 10.77 over Lagrue Bayou

Fair

Arkansas County, Arkansas · 0.7 MI W SH 33-CASSCOE · Structure no. 0000000000M3952

Built
1975
50 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
151 ft
5 main spans
Daily traffic
690
2018 count
Owner
State
State Highway Agency

About this bridge

SH 146-01 Lm 10.77 over Lagrue Bayou is a steel stringer/multi-beam or girder carrying SH 146-01 Lm 10.77 over Lagrue Bayou in Arkansas County, Arkansas. It was built in 1975, so it is 50 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 690 vehicles a day, roughly 1% of them trucks, projected to reach 766 by 2028. The structure is 151 ft (45.9 m) long and 28 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesSH 146-01 Lm 10.77
CrossesLagrue Bayou
Location0.7 MI W SH 33-CASSCOE
RouteState Highway 146
CountyArkansas County
StateArkansas
Coordinates34.53209, -91.35592
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length151 ft (45.9 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic690 (2018)
Projected traffic766 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 SH 146-01 Lm 10.77 over Lagrue Bayou built?

It was built in 1975, making it 50 years old in 2025.

What condition is SH 146-01 Lm 10.77 over Lagrue 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 June 2023.

How much traffic does SH 146-01 Lm 10.77 over Lagrue Bayou carry?

About 690 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 146-01 Lm 10.77 over Lagrue Bayou?

The structure is 151 ft (45.9 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns SH 146-01 Lm 10.77 over Lagrue Bayou?

It is owned by the State Highway Agency.