US Bridges

I 20 over Iowa a Kcsrr Stout Bayou

Poor

Warren County, Mississippi · 1.3 MI E LA ST Line · Structure no. 11000200750013C

Built
1971
54 years old
Condition
Poor
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
783 ft
11 main spans
Daily traffic
15,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 20 over Iowa a Kcsrr Stout Bayou is a concrete continuous tee beam carrying I 20 over Iowa a Kcsrr Stout Bayou in Warren County, Mississippi. It was built in 1971, so it is 54 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 15,500 vehicles a day, roughly 38% of them trucks, projected to reach 15,500 by 2043. The structure is 783 ft (238.7 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 20
CrossesIowa a Kcsrr Stout Bayou
Location1.3 MI E LA ST Line
RouteInterstate 20
Coordinates32.30977, -90.89756
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20 + Mod
Structure length783 ft (238.7 m)
Longest span90 ft (27.4 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2023)
Projected traffic15,500 by 2043
Trucks38%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$824 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 20 over Iowa a Kcsrr Stout Bayou built?

It was built in 1971, making it 54 years old in 2025.

What condition is I 20 over Iowa a Kcsrr Stout Bayou in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does I 20 over Iowa a Kcsrr Stout Bayou carry?

About 15,500 vehicles per day (2023 count), of which roughly 38% are trucks.

How long is I 20 over Iowa a Kcsrr Stout Bayou?

The structure is 783 ft (238.7 m) long with a longest span of 90 ft (27.4 m) and a deck 44 ft wide.

Who owns I 20 over Iowa a Kcsrr Stout Bayou?

It is owned by the State Highway Agency.