US Bridges

New US 98/SR 158 over Big Creek

Good

Mobile County, Alabama · 0.1 MI E Glenwood RD · Structure no. 018683

Built
2008
17 years old, rebuilt 2020
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,717 ft
1 main span
Daily traffic
16,939
2017 count
Owner
State
State Highway Agency

About this bridge

New US 98/SR 158 over Big Creek is a prestressed concrete stringer/multi-beam or girder carrying New US 98/SR 158 over Big Creek in Mobile County, Alabama. It was built in 2008 and reconstructed in 2020, so it is 17 years old, younger than the Alabama average of 51.1 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 16,939 vehicles a day, roughly 20% of them trucks, projected to reach 27,757 by 2027. The structure is 1,717 ft (523.2 m) long and 43 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesNew US 98/SR 158
CrossesBig Creek
Location0.1 MI E Glenwood RD
RouteU.S. Route 98
CountyMobile County
StateAlabama
Coordinates30.81686, -88.31969
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.5 US tons
Inventory rating40.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+33 approach)
Design loadHS 20
Structure length1,717 ft (523.2 m)
Longest span125 ft (38.1 m)
Deck width43 ft (13 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,939 (2017)
Projected traffic27,757 by 2027
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 km)
TollOn a free road
National Highway SystemNo

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$16.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was New US 98/SR 158 over Big Creek built?

It was built in 2008, making it 17 years old in 2025. It was reconstructed in 2020.

What condition is New US 98/SR 158 over Big Creek 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 August 2023.

How much traffic does New US 98/SR 158 over Big Creek carry?

About 16,939 vehicles per day (2017 count), of which roughly 20% are trucks.

How long is New US 98/SR 158 over Big Creek?

The structure is 1,717 ft (523.2 m) long with a longest span of 125 ft (38.1 m) and a deck 43 ft wide.

Who owns New US 98/SR 158 over Big Creek?

It is owned by the State Highway Agency.