US Bridges

Riddle Farm Rd. over Egoniaga Creek

Fair

Calhoun County, Alabama · Riddle Farm Rd. · Structure no. 001914

Built
1939
86 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
48 ft
3 main spans
Daily traffic
203
2024 count
Owner
County
County Highway Agency

About this bridge

Riddle Farm Rd. over Egoniaga Creek is a concrete slab carrying Riddle Farm Rd. over Egoniaga Creek in Calhoun County, Alabama. It was built in 1939, so it is 86 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 5 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 203 vehicles a day, roughly 1% of them trucks, projected to reach 308 by 2044. The structure is 48 ft (14.6 m) long and 13 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRiddle Farm Rd.
CrossesEgoniaga Creek
LocationRiddle Farm Rd.
RouteCounty Highway 9
CountyCalhoun County
StateAlabama
Coordinates33.63888, -85.69065
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span16 ft (4.9 m)
Deck width13 ft (4 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic203 (2024)
Projected traffic308 by 2044
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$210,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Riddle Farm Rd. over Egoniaga Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is Riddle Farm Rd. over Egoniaga 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 March 2024.

How much traffic does Riddle Farm Rd. over Egoniaga Creek carry?

About 203 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Riddle Farm Rd. over Egoniaga Creek?

The structure is 48 ft (14.6 m) long with a longest span of 16 ft (4.9 m) and a deck 13 ft wide.

Who owns Riddle Farm Rd. over Egoniaga Creek?

It is owned by the County Highway Agency.