US Bridges

Kilby Lake Road over West Ditch Lac

FairPosted for load

Humphreys County, Mississippi · Sec 26 T14N R 3W · Structure no. SA2700000000024

Built
1961
64 years old
Condition
Fair
inspected September 2024
Type
Channel Beam
Concrete
Length
95 ft
500 main spans
Daily traffic
60
2018 count
Owner
County
County Highway Agency

About this bridge

Kilby Lake Road over West Ditch Lac is a concrete channel beam carrying Kilby Lake Road over West Ditch Lac in Humphreys County, Mississippi. It was built in 1961, so it is 64 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. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, projected to reach 90 by 2038. The structure is 95 ft (29 m) long and 26 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesKilby Lake Road
CrossesWest Ditch Lac
LocationSec 26 T14N R 3W
RouteCounty Highway 164
CountyHumphreys County
StateMississippi
Coordinates33.02575, -90.47701
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.1 US tons
Inventory rating24.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans500
Design loadH 15
Structure length95 ft (29 m)
Longest span20 ft (6 m)
Deck width26 ft (8 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2018)
Projected traffic90 by 2038
Trucks—
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$276,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kilby Lake Road over West Ditch Lac built?

It was built in 1961, making it 64 years old in 2025.

What condition is Kilby Lake Road over West Ditch Lac 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 September 2024.

How much traffic does Kilby Lake Road over West Ditch Lac carry?

About 60 vehicles per day (2018 count).

How long is Kilby Lake Road over West Ditch Lac?

The structure is 95 ft (29 m) long with a longest span of 20 ft (6 m) and a deck 26 ft wide.

Who owns Kilby Lake Road over West Ditch Lac?

It is owned by the County Highway Agency.