US Bridges

Johnson Road W over Miller Creek

Good

Mobile County, Alabama · 1.2 MI N Jeff Hamilton RD · Structure no. 021855

Built
2023
2 years old
Condition
Good
inspected June 2024
Type
Channel Beam
Concrete
Length
136 ft
4 main spans
Daily traffic
126
2024 count
Owner
County
County Highway Agency

About this bridge

Johnson Road W over Miller Creek is a concrete channel beam carrying Johnson Road W over Miller Creek in Mobile County, Alabama. It was built in 2023, so it is 2 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 126 vehicles a day, projected to reach 189 by 2044. The structure is 136 ft (41.5 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesJohnson Road W
CrossesMiller Creek
Location1.2 MI N Jeff Hamilton RD
RouteCounty Highway 1141
CountyMobile County
StateAlabama
Coordinates30.64197, -88.29492
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating61.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadUnknown
Structure length136 ft (41.5 m)
Longest span34 ft (10.4 m)
Deck width35 ft (10.7 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic126 (2024)
Projected traffic189 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Johnson Road W over Miller Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is Johnson Road W over Miller 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 June 2024.

How much traffic does Johnson Road W over Miller Creek carry?

About 126 vehicles per day (2024 count).

How long is Johnson Road W over Miller Creek?

The structure is 136 ft (41.5 m) long with a longest span of 34 ft (10.4 m) and a deck 35 ft wide.

Who owns Johnson Road W over Miller Creek?

It is owned by the County Highway Agency.