US Bridges

Co. Rd. 20 over Hammock Creek

Good

Baldwin County, Alabama · 1.2 Mi. W. of Co. Rd. 95 · Structure no. 017033

Built
1997
28 years old
Condition
Good
inspected December 2023
Type
Channel Beam
Concrete
Length
170 ft
5 main spans
Daily traffic
1,317
2024 count
Owner
County
County Highway Agency

About this bridge

Co. Rd. 20 over Hammock Creek is a concrete channel beam carrying Co. Rd. 20 over Hammock Creek in Baldwin County, Alabama. It was built in 1997, so it is 28 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 1,317 vehicles a day, roughly 10% of them trucks, projected to reach 1,789 by 2044. The structure is 170 ft (51.8 m) long and 33 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesCo. Rd. 20
CrossesHammock Creek
Location1.2 Mi. W. of Co. Rd. 95
RouteCounty Highway 20
StateAlabama
Coordinates30.36303, -87.56778
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 protection8 Very GoodNo problems noted.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating36.2 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 width33 ft (10.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,317 (2024)
Projected traffic1,789 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$1.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. Rd. 20 over Hammock Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Co. Rd. 20 over Hammock 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 December 2023.

How much traffic does Co. Rd. 20 over Hammock Creek carry?

About 1,317 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Co. Rd. 20 over Hammock Creek?

The structure is 170 ft (51.8 m) long with a longest span of 34 ft (10.4 m) and a deck 33 ft wide.

Who owns Co. Rd. 20 over Hammock Creek?

It is owned by the County Highway Agency.