US Bridges

SR 1 over Steele Bayou

Fair

Washington County, Mississippi · 0.7 MI S SR 436 · Structure no. 310000107603740

Built
1952
73 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
360 ft
9 main spans
Daily traffic
2,300
2023 count
Owner
State
State Highway Agency

About this bridge

SR 1 over Steele Bayou is a steel stringer/multi-beam or girder carrying SR 1 over Steele Bayou in Washington County, Mississippi. It was built in 1952, so it is 73 years old, older than the Mississippi average of 38.9 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 2,300 vehicles a day, roughly 14% of them trucks, projected to reach 2,300 by 2043. The structure is 360 ft (109.7 m) long and 31 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

Location

Open in Google Maps
CarriesSR 1
CrossesSteele Bayou
Location0.7 MI S SR 436
RouteState Highway 1
CountyWashington County
StateMississippi
Coordinates33.02292, -90.99056
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.3 US tons
Inventory rating28.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans9
Design loadHS 15
Structure length360 ft (109.7 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic2,300 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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$826 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 1 over Steele Bayou built?

It was built in 1952, making it 73 years old in 2025.

What condition is SR 1 over Steele 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 March 2024.

How much traffic does SR 1 over Steele Bayou carry?

About 2,300 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 1 over Steele Bayou?

The structure is 360 ft (109.7 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns SR 1 over Steele Bayou?

It is owned by the State Highway Agency.