US Bridges

Sky Lake Road over Drainage Ditch

FairPosted for load

Humphreys County, Mississippi · Sec 9 T16N R 3W B · Structure no. SA2700000000080

Built
1978
47 years old
Condition
Fair
inspected September 2024
Type
Channel Beam
Concrete
Length
56 ft
100 main spans
Daily traffic
90
2021 count
Owner
County
County Highway Agency

About this bridge

Sky Lake Road over Drainage Ditch is a concrete channel beam carrying Sky Lake Road over Drainage Ditch in Humphreys County, Mississippi. It was built in 1978, so it is 47 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 90 vehicles a day, projected to reach 135 by 2043. The structure is 56 ft (17 m) long and 26 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

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CarriesSky Lake Road
CrossesDrainage Ditch
LocationSec 9 T16N R 3W B
RouteCounty Highway 30
CountyHumphreys County
StateMississippi
Coordinates33.24181, -90.51962
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
Deck7 GoodSome minor problems.
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 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.9 US tons
Inventory rating24.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans100 (+2 approach)
Design loadH 15
Structure length56 ft (17 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 traffic90 (2021)
Projected traffic135 by 2043
Trucks—
Lanes on structure20
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$170,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Sky Lake Road over Drainage Ditch built?

It was built in 1978, making it 47 years old in 2025.

What condition is Sky Lake Road over Drainage Ditch 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 Sky Lake Road over Drainage Ditch carry?

About 90 vehicles per day (2021 count).

How long is Sky Lake Road over Drainage Ditch?

The structure is 56 ft (17 m) long with a longest span of 20 ft (6 m) and a deck 26 ft wide.

Who owns Sky Lake Road over Drainage Ditch?

It is owned by the County Highway Agency.