US Bridges

SR 404 over I 55

Fair

Carroll County, Mississippi · SR 404 over I 55 · Structure no. 310040400800010

Built
1963
62 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
278 ft
4 main spans
Daily traffic
300
2023 count
Owner
State
State Highway Agency

About this bridge

SR 404 over I 55 is a concrete continuous box beam or girders - single or spread carrying SR 404 over I 55 in Carroll County, Mississippi. It was built in 1963, so it is 62 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 300 vehicles a day, roughly 12% of them trucks, projected to reach 300 by 2043. The structure is 278 ft (84.7 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 404
CrossesI 55
LocationSR 404 over I 55
RouteState Highway 404
Coordinates33.63527, -89.79429
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length278 ft (84.7 m)
Longest span80 ft (24.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic300 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 404 over I 55 built?

It was built in 1963, making it 62 years old in 2025.

What condition is SR 404 over I 55 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 October 2024.

How much traffic does SR 404 over I 55 carry?

About 300 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is SR 404 over I 55?

The structure is 278 ft (84.7 m) long with a longest span of 80 ft (24.4 m) and a deck 30 ft wide.

Who owns SR 404 over I 55?

It is owned by the State Highway Agency.