US Bridges

Lamkin Road over 509 over West Ditch Lac

GoodPosted for load

Humphreys County, Mississippi · Sec 23 T14N R 3W B · Structure no. SA2700000000023

Built
1962
63 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
110
2018 count
Owner
County
County Highway Agency

About this bridge

Lamkin Road over 509 over West Ditch Lac is a concrete slab carrying Lamkin Road over 509 over West Ditch Lac in Humphreys County, Mississippi. It was built in 1962, so it is 63 years old, older 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. Its operating status is: posted for other load-capacity restriction.

It carries about 110 vehicles a day, roughly 8% of them trucks, projected to reach 135 by 2044. The structure is 60 ft (18.3 m) long and 27 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesLamkin Road
Crosses509 over West Ditch Lac
LocationSec 23 T14N R 3W B
RouteCounty Highway 509
CountyHumphreys County
StateMississippi
Coordinates33.0464, -90.48036
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating28.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2018)
Projected traffic135 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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$208,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lamkin Road over 509 over West Ditch Lac built?

It was built in 1962, making it 63 years old in 2025.

What condition is Lamkin Road over 509 over West Ditch Lac 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 Lamkin Road over 509 over West Ditch Lac carry?

About 110 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is Lamkin Road over 509 over West Ditch Lac?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 27 ft wide.

Who owns Lamkin Road over 509 over West Ditch Lac?

It is owned by the County Highway Agency.