US Bridges

163 NB to I-10 EB over CSX RR

Fair

Mobile County, Alabama · I-10 @ SR 163 Interchange · Structure no. 008960

Built
1966
59 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
438 ft
3 main spans
Daily traffic
3,233
2022 count
Owner
State
State Highway Agency

About this bridge

163 NB to I-10 EB over CSX RR is a prestressed concrete continuous box beam or girders - single or spread carrying 163 NB to I-10 EB over CSX RR in Mobile County, Alabama. It was built in 1966, so it is 59 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 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 3,233 vehicles a day, roughly 4% of them trucks, projected to reach 4,850 by 2042. The structure is 438 ft (133.5 m) long and 27 ft wide.

Location

Open in Google Maps
Carries163 NB to I-10 EB
CrossesCSX RR
LocationI-10 @ SR 163 Interchange
RouteInterstate 10
CountyMobile County
StateAlabama
Coordinates30.63926, -88.08873
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58 US tons
Inventory rating34.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+6 approach)
Design loadHS 20
Structure length438 ft (133.5 m)
Longest span79 ft (24.1 m)
Deck width27 ft (8.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,233 (2022)
Projected traffic4,850 by 2042
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$2.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 163 NB to I-10 EB over CSX RR built?

It was built in 1966, making it 59 years old in 2025.

What condition is 163 NB to I-10 EB over CSX RR 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 June 2024.

How much traffic does 163 NB to I-10 EB over CSX RR carry?

About 3,233 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is 163 NB to I-10 EB over CSX RR?

The structure is 438 ft (133.5 m) long with a longest span of 79 ft (24.1 m) and a deck 27 ft wide.

Who owns 163 NB to I-10 EB over CSX RR?

It is owned by the State Highway Agency.