US Bridges

SH 203 S-1 Lm 0.28 over Buffalo Slough

Fair

Calhoun County, Arkansas · JCT SH 4 & SH 203 · Structure no. 0000000000M2313

Built
1965
60 years old
Condition
Fair
inspected August 2024
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
790
2018 count
Owner
State
State Highway Agency

About this bridge

SH 203 S-1 Lm 0.28 over Buffalo Slough is a concrete channel beam carrying SH 203 S-1 Lm 0.28 over Buffalo Slough in Calhoun County, Arkansas. It was built in 1965, so it is 60 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 790 vehicles a day, roughly 1% of them trucks, projected to reach 836 by 2028. The structure is 57 ft (17.4 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSH 203 S-1 Lm 0.28
CrossesBuffalo Slough
LocationJCT SH 4 & SH 203
RouteState Highway 203
CountyCalhoun County
StateArkansas
Coordinates33.54011, -92.47648
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic790 (2018)
Projected traffic836 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 203 S-1 Lm 0.28 over Buffalo Slough built?

It was built in 1965, making it 60 years old in 2025.

What condition is SH 203 S-1 Lm 0.28 over Buffalo 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 August 2024.

How much traffic does SH 203 S-1 Lm 0.28 over Buffalo Slough carry?

About 790 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 203 S-1 Lm 0.28 over Buffalo Slough?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns SH 203 S-1 Lm 0.28 over Buffalo Slough?

It is owned by the State Highway Agency.