US Bridges

_US-421 over _pigeon Roost Creek

Good

Jackson County, Kentucky · _mckee Phone Company · Structure no. 055B00048N

Built
2017
8 years old
Condition
Good
inspected February 2022
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
5,507
2023 count
Owner
State
State Highway Agency

About this bridge

_US-421 over _pigeon Roost Creek is a prestressed concrete box beam or girders - single or spread carrying _US-421 over _pigeon Roost Creek in Jackson County, Kentucky. It was built in 2017, so it is 8 years old, younger 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 5,507 vehicles a day, roughly 8% of them trucks, projected to reach 5,507 by 2043. The structure is 51 ft (15.4 m) long and 40 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
Carries_US-421
Crosses_pigeon Roost Creek
Location_mckee Phone Company
RouteU.S. Route 421
CountyJackson County
StateKentucky
Coordinates37.43111, -83.99306
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.2 US tons
Inventory rating52.5 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length51 ft (15.4 m)
Longest span47 ft (14.4 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,507 (2023)
Projected traffic5,507 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 _US-421 over _pigeon Roost Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is _US-421 over _pigeon Roost Creek 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 February 2022.

How much traffic does _US-421 over _pigeon Roost Creek carry?

About 5,507 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is _US-421 over _pigeon Roost Creek?

The structure is 51 ft (15.4 m) long with a longest span of 47 ft (14.4 m) and a deck 40 ft wide.

Who owns _US-421 over _pigeon Roost Creek?

It is owned by the State Highway Agency.