US Bridges

KY-256 over Porters Ditch

Good

McLean County, Kentucky · 3.6 MI W of JCT Ky 81 · Structure no. 075B00068N

Built
1987
38 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
242
2019 count
Owner
State
State Highway Agency

About this bridge

KY-256 over Porters Ditch is a prestressed concrete box beam or girders - multiple carrying KY-256 over Porters Ditch in McLean County, Kentucky. It was built in 1987, so it is 38 years old, younger than the Kentucky average of 46.6 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 242 vehicles a day, projected to reach 242 by 2039. The structure is 68 ft (20.7 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesKY-256
CrossesPorters Ditch
Location3.6 MI W of JCT Ky 81
RouteState Highway 256
CountyMcLean County
StateKentucky
Coordinates37.56389, -87.30944
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating40.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span64 ft (19.5 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic242 (2019)
Projected traffic242 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-256 over Porters Ditch built?

It was built in 1987, making it 38 years old in 2025.

What condition is KY-256 over Porters Ditch 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 August 2024.

How much traffic does KY-256 over Porters Ditch carry?

About 242 vehicles per day (2019 count).

How long is KY-256 over Porters Ditch?

The structure is 68 ft (20.7 m) long with a longest span of 64 ft (19.5 m) and a deck 29 ft wide.

Who owns KY-256 over Porters Ditch?

It is owned by the State Highway Agency.