US Bridges

CR 1231 over Shannon Creek

Fair

Mason County, Kentucky · 1.1 MI S. of Jct. Ky 596 · Structure no. 081C00071N

Built
2010
15 years old
Condition
Fair
inspected December 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
1 main span
Daily traffic
159
2009 count
Owner
County
County Highway Agency

About this bridge

CR 1231 over Shannon Creek is a steel stringer/multi-beam or girder carrying CR 1231 over Shannon Creek in Mason County, Kentucky. It was built in 2010, so it is 15 years old, younger than the Kentucky average of 46.6 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 159 vehicles a day, projected to reach 159 by 2029. The structure is 66 ft (20.1 m) long and 16 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCR 1231
CrossesShannon Creek
Location1.1 MI S. of Jct. Ky 596
RouteCounty Highway 1231
CountyMason County
StateKentucky
Coordinates38.55917, -83.93083
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110 US tons
Inventory rating72.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length66 ft (20.1 m)
Longest span62 ft (18.9 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic159 (2009)
Projected traffic159 by 2029
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 1231 over Shannon Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is CR 1231 over Shannon 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 2021.

How much traffic does CR 1231 over Shannon Creek carry?

About 159 vehicles per day (2009 count).

How long is CR 1231 over Shannon Creek?

The structure is 66 ft (20.1 m) long with a longest span of 62 ft (18.9 m) and a deck 16 ft wide.

Who owns CR 1231 over Shannon Creek?

It is owned by the County Highway Agency.