US Bridges

Catherine Drive over Drainage Ditch

Fair

Mobile County, Alabama · 430FT. N of Carl Ave · Structure no. 014004

Built
1986
39 years old
Condition
Fair
inspected March 2025
Type
Culvert
Concrete
Length
34 ft
4 main spans
Daily traffic
332
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Catherine Drive over Drainage Ditch is a concrete culvert carrying Catherine Drive over Drainage Ditch in Mobile County, Alabama. It was built in 1986, so it is 39 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 332 vehicles a day, roughly 1% of them trucks, projected to reach 448 by 2043. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCatherine Drive
CrossesDrainage Ditch
Location430FT. N of Carl Ave
RouteCity Street 0
CountyMobile County
StateAlabama
Coordinates30.84, -88.04333
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic332 (2023)
Projected traffic448 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$436,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Catherine Drive over Drainage Ditch built?

It was built in 1986, making it 39 years old in 2025.

What condition is Catherine Drive 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 March 2025.

How much traffic does Catherine Drive over Drainage Ditch carry?

About 332 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Catherine Drive over Drainage Ditch?

The structure is 34 ft (10.4 m) long with a longest span of 8 ft (2.4 m).

Who owns Catherine Drive over Drainage Ditch?

It is owned by the City or Municipal Highway Agency.