US Bridges

KY-550 over Montgomery Creek

FairPosted for load

Knott County, Kentucky · At JCT Ky 1102 · Structure no. 060B00027N

Built
1927
98 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
33 ft
1 main span
Daily traffic
571
2022 count
Owner
State
State Highway Agency

About this bridge

KY-550 over Montgomery Creek is a concrete tee beam carrying KY-550 over Montgomery Creek in Knott County, Kentucky. It was built in 1927, so it is 98 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 571 vehicles a day, roughly 7% of them trucks, projected to reach 571 by 2042. The structure is 33 ft (10.1 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesKY-550
CrossesMontgomery Creek
LocationAt JCT Ky 1102
RouteState Highway 550
CountyKnott County
StateKentucky
Coordinates37.33611, -83.06333
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.2 US tons
Inventory rating30.2 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length33 ft (10.1 m)
Longest span30 ft (9 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic571 (2022)
Projected traffic571 by 2042
Trucks7%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$90,000
NavigationNo navigation control on waterway

Frequently asked questions

When was KY-550 over Montgomery Creek built?

It was built in 1927, making it 98 years old in 2025.

What condition is KY-550 over Montgomery 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 June 2023.

How much traffic does KY-550 over Montgomery Creek carry?

About 571 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is KY-550 over Montgomery Creek?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9 m) and a deck 22 ft wide.

Who owns KY-550 over Montgomery Creek?

It is owned by the State Highway Agency.