US Bridges

KY-36 over Steam Mill Branch

Good

Grant County, Kentucky · 1.6 MI West of I-75 Ntrch · Structure no. 041B00009N

Built
1933
92 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
415
2021 count
Owner
State
State Highway Agency

About this bridge

KY-36 over Steam Mill Branch is a concrete culvert carrying KY-36 over Steam Mill Branch in Grant County, Kentucky. It was built in 1933, so it is 92 years old, older 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 415 vehicles a day, roughly 6% of them trucks, projected to reach 415 by 2041. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesKY-36
CrossesSteam Mill Branch
Location1.6 MI West of I-75 Ntrch
RouteState Highway 36
Coordinates38.62889, -84.60167
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating86.8 US tons
Inventory rating51.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic415 (2021)
Projected traffic415 by 2041
Trucks6%
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-36 over Steam Mill Branch built?

It was built in 1933, making it 92 years old in 2025.

What condition is KY-36 over Steam Mill Branch 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 July 2024.

How much traffic does KY-36 over Steam Mill Branch carry?

About 415 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is KY-36 over Steam Mill Branch?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns KY-36 over Steam Mill Branch?

It is owned by the State Highway Agency.