US Bridges

Miller Road over Miller Ditch

Good

Knox County, Indiana · 00.49 E of State Road 159 · Structure no. 4200303

Built
1997
28 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
110
2015 count
Owner
County
County Highway Agency

About this bridge

Miller Road over Miller Ditch is a prestressed concrete box beam or girders - multiple carrying Miller Road over Miller Ditch in Knox County, Indiana. It was built in 1997, so it is 28 years old, younger than the Indiana 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 110 vehicles a day, roughly 3% of them trucks, projected to reach 150 by 2035. The structure is 61 ft (18.5 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMiller Road
CrossesMiller Ditch
Location00.49 E of State Road 159
RouteCounty Highway 0
StateIndiana
Coordinates38.80233, -87.30089
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.7 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length61 ft (18.5 m)
Longest span56 ft (17 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2015)
Projected traffic150 by 2035
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Miller Road over Miller Ditch built?

It was built in 1997, making it 28 years old in 2025.

What condition is Miller Road over Miller Ditch 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 September 2023.

How much traffic does Miller Road over Miller Ditch carry?

About 110 vehicles per day (2015 count), of which roughly 3% are trucks.

How long is Miller Road over Miller Ditch?

The structure is 61 ft (18.5 m) long with a longest span of 56 ft (17 m) and a deck 20 ft wide.

Who owns Miller Road over Miller Ditch?

It is owned by the County Highway Agency.