US Bridges

Three Mile RD over Hammar Creek

Fair

Mobile County, Alabama · 1.3 MI E Argyle RD · Structure no. 015089

Built
1990
35 years old
Condition
Fair
inspected April 2024
Type
Channel Beam
Concrete
Length
72 ft
3 main spans
Daily traffic
826
2024 count
Owner
County
County Highway Agency

About this bridge

Three Mile RD over Hammar Creek is a concrete channel beam carrying Three Mile RD over Hammar Creek in Mobile County, Alabama. It was built in 1990, so it is 35 years old, younger 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 826 vehicles a day, roughly 3% of them trucks, projected to reach 1,227 by 2044. The structure is 72 ft (21.9 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesThree Mile RD
CrossesHammar Creek
Location1.3 MI E Argyle RD
RouteCounty Highway 0
StateAlabama
Coordinates30.45811, -88.23954
Functional classRural Local

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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.8 US tons
Inventory rating44.9 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 width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic826 (2024)
Projected traffic1,227 by 2044
Trucks3%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$633,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Three Mile RD over Hammar Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Three Mile RD over Hammar 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 April 2024.

How much traffic does Three Mile RD over Hammar Creek carry?

About 826 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Three Mile RD over Hammar Creek?

The structure is 72 ft (21.9 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns Three Mile RD over Hammar Creek?

It is owned by the County Highway Agency.