US Bridges

KY-511 over Main Blake Fork Creek

FairPosted for load

Whitley County, Kentucky · 1.4 MI West of I-75 Op · Structure no. 118B00011N

Built
1955
70 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
389
2021 count
Owner
State
State Highway Agency

About this bridge

KY-511 over Main Blake Fork Creek is a concrete culvert carrying KY-511 over Main Blake Fork Creek in Whitley County, Kentucky. It was built in 1955, so it is 70 years old, older 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. Its operating status is: posted for load restriction.

It carries about 389 vehicles a day, projected to reach 389 by 2041. The structure is 25 ft (7.6 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesKY-511
CrossesMain Blake Fork Creek
Location1.4 MI West of I-75 Op
RouteState Highway 511
CountyWhitley County
StateKentucky
Coordinates36.85306, -84.18111
Functional classRural Minor 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.7 US tons
Inventory rating22 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width37 ft (11.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic389 (2021)
Projected traffic389 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-511 over Main Blake Fork Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is KY-511 over Main Blake Fork 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 2023.

How much traffic does KY-511 over Main Blake Fork Creek carry?

About 389 vehicles per day (2021 count).

How long is KY-511 over Main Blake Fork Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 37 ft wide.

Who owns KY-511 over Main Blake Fork Creek?

It is owned by the State Highway Agency.