US Bridges

Ky 100 over CSX R.R. & R.R ST

Fair

Simpson County, Kentucky · 0.5 Mi.East -Jct 31W · Structure no. 107B00035N

Built
1984
41 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
173 ft
2 main spans
Daily traffic
3,860
2022 count
Owner
State
State Highway Agency

About this bridge

Ky 100 over CSX R.R. & R.R ST is a prestressed concrete continuous box beam or girders - single or spread carrying Ky 100 over CSX R.R. & R.R ST in Simpson County, Kentucky. It was built in 1984, so it is 41 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 3,860 vehicles a day, roughly 10% of them trucks, projected to reach 3,860 by 2042. The structure is 173 ft (52.8 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKy 100
CrossesCSX R.R. & R.R ST
Location0.5 Mi.East -Jct 31W
RouteState Highway 100
CountySimpson County
StateKentucky
Coordinates36.71806, -86.57444
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.7 US tons
Inventory rating52.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckOther
Main spans2
Design loadHS 20
Structure length173 ft (52.8 m)
Longest span95 ft (29 m)
Deck width79 ft (24.2 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,860 (2022)
Projected traffic3,860 by 2042
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ky 100 over CSX R.R. & R.R ST built?

It was built in 1984, making it 41 years old in 2025.

What condition is Ky 100 over CSX R.R. & R.R ST 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 July 2023.

How much traffic does Ky 100 over CSX R.R. & R.R ST carry?

About 3,860 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ky 100 over CSX R.R. & R.R ST?

The structure is 173 ft (52.8 m) long with a longest span of 95 ft (29 m) and a deck 79 ft wide.

Who owns Ky 100 over CSX R.R. & R.R ST?

It is owned by the State Highway Agency.