US Bridges

Dobson Ave over Canal

Good

Madison County, Mississippi · Sec 19 T 9N R 3E · Structure no. SA450000000A155

Built
2016
9 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
40 ft
2 main spans
Daily traffic
200
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dobson Ave over Canal is a concrete culvert carrying Dobson Ave over Canal in Madison County, Mississippi. It was built in 2016, so it is 9 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 200 vehicles a day, roughly 8% of them trucks, projected to reach 300 by 2035. The structure is 40 ft (12.1 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesDobson Ave
CrossesCanal
LocationSec 19 T 9N R 3E
RouteCity Street 713
Coordinates32.61677, -90.03243
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length40 ft (12.1 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2015)
Projected traffic300 by 2035
Trucks8%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$60,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Dobson Ave over Canal built?

It was built in 2016, making it 9 years old in 2025.

What condition is Dobson Ave 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 March 2023.

How much traffic does Dobson Ave over Canal carry?

About 200 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Dobson Ave over Canal?

The structure is 40 ft (12.1 m) long with a longest span of 18 ft (5.5 m).

Who owns Dobson Ave over Canal?

It is owned by the City or Municipal Highway Agency.