US Bridges

SH 146-01 Lm 10.68 over Lagrue Bayou Relief

Fair

Arkansas County, Arkansas · 0.8 MI W SH 33-CASSCOE · Structure no. 0000000000M2040

Built
1968
57 years old
Condition
Fair
inspected June 2023
Type
Channel Beam
Concrete
Length
58 ft
3 main spans
Daily traffic
690
2018 count
Owner
State
State Highway Agency

About this bridge

SH 146-01 Lm 10.68 over Lagrue Bayou Relief is a concrete channel beam carrying SH 146-01 Lm 10.68 over Lagrue Bayou Relief in Arkansas County, Arkansas. It was built in 1968, so it is 57 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 690 vehicles a day, roughly 1% of them trucks, projected to reach 766 by 2028. The structure is 58 ft (17.6 m) long and 25 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

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CarriesSH 146-01 Lm 10.68
CrossesLagrue Bayou Relief
Location0.8 MI W SH 33-CASSCOE
RouteState Highway 146
CountyArkansas County
StateArkansas
Coordinates34.53181, -91.35739
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length58 ft (17.6 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.2 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
CrossesRelief for waterway
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 10.68 over Lagrue Bayou Relief built?

It was built in 1968, making it 57 years old in 2025.

What condition is SH 146-01 Lm 10.68 over Lagrue Bayou Relief 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 10.68 over Lagrue Bayou Relief carry?

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

How long is SH 146-01 Lm 10.68 over Lagrue Bayou Relief?

The structure is 58 ft (17.6 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns SH 146-01 Lm 10.68 over Lagrue Bayou Relief?

It is owned by the State Highway Agency.