US Bridges

SR 450 over Ditch

Good

Bolivar County, Mississippi · 13.7 MI E SR 1 · Structure no. 310045000601370

Built
1991
34 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
630
2023 count
Owner
State
State Highway Agency

About this bridge

SR 450 over Ditch is a concrete culvert carrying SR 450 over Ditch in Bolivar County, Mississippi. It was built in 1991, so it is 34 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 630 vehicles a day, roughly 11% of them trucks, projected to reach 630 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesSR 450
CrossesDitch
Location13.7 MI E SR 1
RouteState Highway 450
CountyBolivar County
StateMississippi
Coordinates33.55868, -90.88018
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating43.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic630 (2023)
Projected traffic630 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 SR 450 over Ditch built?

It was built in 1991, making it 34 years old in 2025.

What condition is SR 450 over Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does SR 450 over Ditch carry?

About 630 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 450 over Ditch?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m).

Who owns SR 450 over Ditch?

It is owned by the State Highway Agency.