US Bridges

Powder Horn Branch over Mill Creek

PoorPosted for load

Clay County, Kentucky · .05 MI SE of JCT CR 5154 · Structure no. 026C00029N

Built
1960
65 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
42 ft
2 main spans
Daily traffic
21
2006 count
Owner
County
County Highway Agency

About this bridge

Powder Horn Branch over Mill Creek is a steel continuous stringer/multi-beam or girder carrying Powder Horn Branch over Mill Creek in Clay County, Kentucky. It was built in 1960, so it is 65 years old, older than the Kentucky average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 21 vehicles a day, projected to reach 22 by 2026. The structure is 42 ft (12.8 m) long and 10 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPowder Horn Branch
CrossesMill Creek
Location.05 MI SE of JCT CR 5154
RouteCounty Highway 1156
Coordinates37.00667, -83.65556
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating15 US tons
Inventory rating9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, precast panels
Main spans2
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span19 ft (5.9 m)
Deck width10 ft (3.1 m)
Roadway width9 ft (2.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2006)
Projected traffic22 by 2026
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$64,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Powder Horn Branch over Mill Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Powder Horn Branch over Mill Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does Powder Horn Branch over Mill Creek carry?

About 21 vehicles per day (2006 count).

How long is Powder Horn Branch over Mill Creek?

The structure is 42 ft (12.8 m) long with a longest span of 19 ft (5.9 m) and a deck 10 ft wide.

Who owns Powder Horn Branch over Mill Creek?

It is owned by the County Highway Agency.