US Bridges

Lawson Road over Fields Slough

Good

Montgomery County, Alabama · 2.1 MI E of Old Pike RD · Structure no. 014580

Built
1988
37 years old
Condition
Good
inspected June 2023
Type
Channel Beam
Concrete
Length
72 ft
3 main spans
Daily traffic
180
1988 count
Owner
County
County Highway Agency

About this bridge

Lawson Road over Fields Slough is a concrete channel beam carrying Lawson Road over Fields Slough in Montgomery County, Alabama. It was built in 1988, so it is 37 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 180 vehicles a day, roughly 1% of them trucks, projected to reach 190 by 2041. The structure is 72 ft (21.9 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLawson Road
CrossesFields Slough
Location2.1 MI E of Old Pike RD
RouteCounty Highway 40
StateAlabama
Coordinates32.23778, -86.01972
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span24 ft (7.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (1988)
Projected traffic190 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed6.2 mi (10 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$586,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lawson Road over Fields Slough built?

It was built in 1988, making it 37 years old in 2025.

What condition is Lawson Road over Fields Slough 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 2023.

How much traffic does Lawson Road over Fields Slough carry?

About 180 vehicles per day (1988 count), of which roughly 1% are trucks.

How long is Lawson Road over Fields Slough?

The structure is 72 ft (21.9 m) long with a longest span of 24 ft (7.3 m) and a deck 27 ft wide.

Who owns Lawson Road over Fields Slough?

It is owned by the County Highway Agency.