US Bridges

Slago Dairy Road over Canal

Good

Washington County, Mississippi · Sec 16 T17N R 7W · Structure no. SA760000000A176

Built
2014
11 years old
Condition
Good
inspected January 2025
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
50
2025 count
Owner
County
County Highway Agency

About this bridge

Slago Dairy Road over Canal is a concrete channel beam carrying Slago Dairy Road over Canal in Washington County, Mississippi. It was built in 2014, so it is 11 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 50 vehicles a day, roughly 8% of them trucks, projected to reach 70 by 2045. The structure is 57 ft (17.4 m) long and 32 ft wide. If it were closed, the detour would be 9.3 mi (15 km).

Location

Open in Google Maps
CarriesSlago Dairy Road
CrossesCanal
LocationSec 16 T17N R 7W
RouteCounty Highway 638
CountyWashington County
StateMississippi
Coordinates33.31336, -90.94238
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 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 traffic50 (2025)
Projected traffic70 by 2045
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.3 mi (15 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$626,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Slago Dairy Road over Canal built?

It was built in 2014, making it 11 years old in 2025.

What condition is Slago Dairy Road over Canal 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 January 2025.

How much traffic does Slago Dairy Road over Canal carry?

About 50 vehicles per day (2025 count), of which roughly 8% are trucks.

How long is Slago Dairy Road over Canal?

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 Slago Dairy Road over Canal?

It is owned by the County Highway Agency.