US Bridges

Al 605 over Big Creek

Fair

Houston County, Alabama · 1.1 Mile North Lonnie RD · Structure no. 017818

Built
2000
25 years old
Condition
Fair
inspected December 2023
Type
Channel Beam
Concrete
Length
170 ft
5 main spans
Daily traffic
930
2013 count
Owner
State
State Highway Agency

About this bridge

Al 605 over Big Creek is a concrete channel beam carrying Al 605 over Big Creek in Houston County, Alabama. It was built in 2000, so it is 25 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 930 vehicles a day, roughly 4% of them trucks, projected to reach 1,135 by 2033. The structure is 170 ft (51.8 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesAl 605
CrossesBig Creek
Location1.1 Mile North Lonnie RD
RouteState Highway 605
CountyHouston County
StateAlabama
Coordinates31.07981, -85.43119
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 alignment7: Better than present minimum criteria
Operating rating81.2 US tons
Inventory rating48.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic930 (2013)
Projected traffic1,135 by 2033
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Al 605 over Big Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Al 605 over Big 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 December 2023.

How much traffic does Al 605 over Big Creek carry?

About 930 vehicles per day (2013 count), of which roughly 4% are trucks.

How long is Al 605 over Big Creek?

The structure is 170 ft (51.8 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Al 605 over Big Creek?

It is owned by the State Highway Agency.