US Bridges

Kelso Road over Natural Slough

Good

Issaquena County, Mississippi · Sec 11 T 9N R 7W · Structure no. SA280000000A001

Built
2018
7 years old
Condition
Good
inspected September 2023
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
90
2022 count
Owner
County
County Highway Agency

About this bridge

Kelso Road over Natural Slough is a concrete channel beam carrying Kelso Road over Natural Slough in Issaquena County, Mississippi. It was built in 2018, so it is 7 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 90 vehicles a day, roughly 8% of them trucks, projected to reach 126 by 2042. The structure is 57 ft (17.4 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKelso Road
CrossesNatural Slough
LocationSec 11 T 9N R 7W
RouteCounty Highway 61
CountyIssaquena County
StateMississippi
Coordinates32.64162, -90.89564
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic126 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$574,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kelso Road over Natural Slough built?

It was built in 2018, making it 7 years old in 2025.

What condition is Kelso Road over Natural Slough 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 September 2023.

How much traffic does Kelso Road over Natural Slough carry?

About 90 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Kelso Road over Natural Slough?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 32 ft wide.

Who owns Kelso Road over Natural Slough?

It is owned by the County Highway Agency.