US Bridges

US 421 over Trib to Drennon Creek

Good

Henry County, Kentucky · 1.0 MI S of Ky 22 · Structure no. 052B00082N

Built
2010
15 years old
Condition
Good
inspected July 2021
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
2,332
2020 count
Owner
State
State Highway Agency

About this bridge

US 421 over Trib to Drennon Creek is a prestressed concrete box beam or girders - single or spread carrying US 421 over Trib to Drennon Creek in Henry County, Kentucky. It was built in 2010, so it is 15 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 2,332 vehicles a day, roughly 16% of them trucks, projected to reach 2,332 by 2040. The structure is 42 ft (12.7 m) long and 33 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesUS 421
CrossesTrib to Drennon Creek
Location1.0 MI S of Ky 22
RouteU.S. Route 421
CountyHenry County
StateKentucky
Coordinates38.3675, -85.1325
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2021
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating57.1 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 length42 ft (12.7 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,332 (2020)
Projected traffic2,332 by 2040
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 Trib to Drennon Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is US 421 over Trib to Drennon 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 July 2021.

How much traffic does US 421 over Trib to Drennon Creek carry?

About 2,332 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is US 421 over Trib to Drennon Creek?

The structure is 42 ft (12.7 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns US 421 over Trib to Drennon Creek?

It is owned by the State Highway Agency.