US Bridges

Airbase Road over Canal

Good

Washington County, Mississippi · Sec 28 T19N R 8W B · Structure no. SA760000000A314

Built
2018
7 years old
Condition
Good
inspected October 2024
Type
Channel Beam
Concrete
Length
102 ft
3 main spans
Daily traffic
1,100
2023 count
Owner
County
County Highway Agency

About this bridge

Airbase Road over Canal is a concrete channel beam carrying Airbase Road over Canal in Washington 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 1,100 vehicles a day, roughly 10% of them trucks, projected to reach 1,540 by 2043. The structure is 102 ft (31.1 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesAirbase Road
CrossesCanal
LocationSec 28 T19N R 8W B
RouteCounty Highway 792
Coordinates33.46222, -91.02387
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length102 ft (31.1 m)
Longest span40 ft (12.2 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2023)
Projected traffic1,540 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Airbase Road over Canal built?

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

What condition is Airbase 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 October 2024.

How much traffic does Airbase Road over Canal carry?

About 1,100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Airbase Road over Canal?

The structure is 102 ft (31.1 m) long with a longest span of 40 ft (12.2 m) and a deck 32 ft wide.

Who owns Airbase Road over Canal?

It is owned by the County Highway Agency.