US Bridges

James H. Biddy Rd. over Relief Ditch

Good

Grenada County, Mississippi · SEC_18_T21N_R 6E B · Structure no. SA2200000000099

Built
1998
27 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
430
2014 count
Owner
County
County Highway Agency

About this bridge

James H. Biddy Rd. over Relief Ditch is a concrete culvert carrying James H. Biddy Rd. over Relief Ditch in Grenada County, Mississippi. It was built in 1998, so it is 27 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 430 vehicles a day, roughly 8% of them trucks, projected to reach 645 by 2034. The structure is 24 ft (7.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesJames H. Biddy Rd.
CrossesRelief Ditch
LocationSEC_18_T21N_R 6E B
RouteCounty Highway 186
Coordinates33.69178, -89.71
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.4 US tons
Inventory rating33.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic430 (2014)
Projected traffic645 by 2034
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 James H. Biddy Rd. over Relief Ditch built?

It was built in 1998, making it 27 years old in 2025.

What condition is James H. Biddy Rd. over Relief 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 November 2023.

How much traffic does James H. Biddy Rd. over Relief Ditch carry?

About 430 vehicles per day (2014 count), of which roughly 8% are trucks.

How long is James H. Biddy Rd. over Relief Ditch?

The structure is 24 ft (7.4 m) long with a longest span of 10 ft (3 m).

Who owns James H. Biddy Rd. over Relief Ditch?

It is owned by the County Highway Agency.