US Bridges

SH 46-02 Lm 8.75 over Big Slough

Fair

Grant County, Arkansas · 1.0 MI N Salinervr-Jenkfr · Structure no. 000000000003538

Built
1966
59 years old
Condition
Fair
inspected June 2024
Type
Channel Beam
Concrete
Length
152 ft
8 main spans
Daily traffic
1,700
2018 count
Owner
State
State Highway Agency

About this bridge

SH 46-02 Lm 8.75 over Big Slough is a concrete channel beam carrying SH 46-02 Lm 8.75 over Big Slough in Grant County, Arkansas. It was built in 1966, so it is 59 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 1,700 vehicles a day, roughly 1% of them trucks, projected to reach 1,042 by 2028. The structure is 152 ft (46.3 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSH 46-02 Lm 8.75
CrossesBig Slough
Location1.0 MI N Salinervr-Jenkfr
RouteState Highway 46
CountyGrant County
StateArkansas
Coordinates34.22387, -92.53884
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans8
Design loadH 15
Structure length152 ft (46.3 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2018)
Projected traffic1,042 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$190,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 46-02 Lm 8.75 over Big Slough built?

It was built in 1966, making it 59 years old in 2025.

What condition is SH 46-02 Lm 8.75 over Big Slough 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 2024.

How much traffic does SH 46-02 Lm 8.75 over Big Slough carry?

About 1,700 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 46-02 Lm 8.75 over Big Slough?

The structure is 152 ft (46.3 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns SH 46-02 Lm 8.75 over Big Slough?

It is owned by the State Highway Agency.