US Bridges

Causeyville-Whynot over M&b RR

Good

Lauderdale County, Mississippi · Sec 9 T 5N R17E B · Structure no. SA380000000A002

Built
2020
5 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
122 ft
3 main spans
Daily traffic
1,300
2024 count
Owner
County
County Highway Agency

About this bridge

Causeyville-Whynot over M&b RR is a prestressed concrete stringer/multi-beam or girder carrying Causeyville-Whynot over M&b RR in Lauderdale County, Mississippi. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,300 vehicles a day, roughly 11% of them trucks, projected to reach 1,400 by 2044. The structure is 122 ft (37.2 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCauseyville-Whynot
CrossesM&b RR
LocationSec 9 T 5N R17E B
RouteCounty Highway 475
Coordinates32.29179, -88.56187
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length122 ft (37.2 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2024)
Projected traffic1,400 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$850,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Causeyville-Whynot over M&b RR built?

It was built in 2020, making it 5 years old in 2025.

What condition is Causeyville-Whynot over M&b RR 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 October 2024.

How much traffic does Causeyville-Whynot over M&b RR carry?

About 1,300 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Causeyville-Whynot over M&b RR?

The structure is 122 ft (37.2 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns Causeyville-Whynot over M&b RR?

It is owned by the County Highway Agency.