US Bridges

US 42 over Millers Branch

Fair

Trimble County, Kentucky · 1.9 MI W of Carroll Cl · Structure no. 112B00027N

Built
1985
40 years old
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
1,493
2023 count
Owner
State
State Highway Agency

About this bridge

US 42 over Millers Branch is a prestressed concrete box beam or girders - multiple carrying US 42 over Millers Branch in Trimble County, Kentucky. It was built in 1985, so it is 40 years old, younger 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.

It carries about 1,493 vehicles a day, roughly 9% of them trucks, projected to reach 1,493 by 2043. The structure is 54 ft (16.5 m) long and 31 ft wide. If it were closed, the detour would be 20.5 mi (33 km).

Location

Open in Google Maps
CarriesUS 42
CrossesMillers Branch
Location1.9 MI W of Carroll Cl
RouteU.S. Route 42
CountyTrimble County
StateKentucky
Coordinates38.61917, -85.26222
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating66.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span52 ft (16 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,493 (2023)
Projected traffic1,493 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed20.5 mi (33 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 42 over Millers Branch built?

It was built in 1985, making it 40 years old in 2025.

What condition is US 42 over Millers Branch 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 October 2023.

How much traffic does US 42 over Millers Branch carry?

About 1,493 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is US 42 over Millers Branch?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (16 m) and a deck 31 ft wide.

Who owns US 42 over Millers Branch?

It is owned by the State Highway Agency.