US Bridges

CO Rt 48 over Mallard Creek

FairPosted for load

Lawrence County, Alabama · 3.4 MI N JCT SR 20 · Structure no. 006308

Built
1958
67 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
145 ft
3 main spans
Daily traffic
1,200
1988 count
Owner
County
County Highway Agency

About this bridge

CO Rt 48 over Mallard Creek is a steel stringer/multi-beam or girder carrying CO Rt 48 over Mallard Creek in Lawrence County, Alabama. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 1,200 vehicles a day, roughly 10% of them trucks, projected to reach 1,900 by 2036. The structure is 145 ft (44.2 m) long and 24 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesCO Rt 48
CrossesMallard Creek
Location3.4 MI N JCT SR 20
RouteCounty Highway 48
StateAlabama
Coordinates34.69023, -87.16404
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.1 US tons
Inventory rating20.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length145 ft (44.2 m)
Longest span49 ft (14.9 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (1988)
Projected traffic1,900 by 2036
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$979,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO Rt 48 over Mallard Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is CO Rt 48 over Mallard Creek 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 February 2024.

How much traffic does CO Rt 48 over Mallard Creek carry?

About 1,200 vehicles per day (1988 count), of which roughly 10% are trucks.

How long is CO Rt 48 over Mallard Creek?

The structure is 145 ft (44.2 m) long with a longest span of 49 ft (14.9 m) and a deck 24 ft wide.

Who owns CO Rt 48 over Mallard Creek?

It is owned by the County Highway Agency.