US Bridges

Dauphin Is.Pkwy N over North Fork Deer River

Fair

Mobile County, Alabama · 1.3 Mi. S. SR 163 · Structure no. 001338

Built
1935
90 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
238
2024 count
Owner
County
County Highway Agency

About this bridge

Dauphin Is.Pkwy N over North Fork Deer River is a concrete continuous slab carrying Dauphin Is.Pkwy N over North Fork Deer River in Mobile County, Alabama. It was built in 1935, so it is 90 years old, older 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 5 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 238 vehicles a day, roughly 3% of them trucks, projected to reach 354 by 2044. The structure is 45 ft (13.6 m) long and 21 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesDauphin Is.Pkwy N
CrossesNorth Fork Deer River
Location1.3 Mi. S. SR 163
RouteCounty Highway 0
StateAlabama
Coordinates30.53496, -88.10708
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length45 ft (13.6 m)
Longest span15 ft (4.6 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic238 (2024)
Projected traffic354 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$322,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Dauphin Is.Pkwy N over North Fork Deer River built?

It was built in 1935, making it 90 years old in 2025.

What condition is Dauphin Is.Pkwy N over North Fork Deer River 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 May 2024.

How much traffic does Dauphin Is.Pkwy N over North Fork Deer River carry?

About 238 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Dauphin Is.Pkwy N over North Fork Deer River?

The structure is 45 ft (13.6 m) long with a longest span of 15 ft (4.6 m) and a deck 21 ft wide.

Who owns Dauphin Is.Pkwy N over North Fork Deer River?

It is owned by the County Highway Agency.