US Bridges

KY-507 over Lower Branch

Fair

Christian County, Kentucky · 1.5 Mi. E JCT Ky 508 · Structure no. 024B00155N

Built
1999
26 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
647
2022 count
Owner
State
State Highway Agency

About this bridge

KY-507 over Lower Branch is a prestressed concrete box beam or girders - single or spread carrying KY-507 over Lower Branch in Christian County, Kentucky. It was built in 1999, so it is 26 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 647 vehicles a day, projected to reach 647 by 2042. The structure is 57 ft (17.4 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesKY-507
CrossesLower Branch
Location1.5 Mi. E JCT Ky 508
RouteState Highway 507
CountyChristian County
StateKentucky
Coordinates36.89972, -87.39167
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.5 US tons
Inventory rating63.9 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length57 ft (17.4 m)
Longest span54 ft (16.5 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic647 (2022)
Projected traffic647 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
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-507 over Lower Branch built?

It was built in 1999, making it 26 years old in 2025.

What condition is KY-507 over Lower Branch 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 June 2024.

How much traffic does KY-507 over Lower Branch carry?

About 647 vehicles per day (2022 count).

How long is KY-507 over Lower Branch?

The structure is 57 ft (17.4 m) long with a longest span of 54 ft (16.5 m) and a deck 31 ft wide.

Who owns KY-507 over Lower Branch?

It is owned by the State Highway Agency.