US Bridges

I-74 WB Exit Ramp over Miller Ditch

Good

Marion County, Indiana · 02.43 E I-465 · Structure no. 044593

Built
2003
22 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
2,550
2004 count
Owner
State
State Highway Agency

About this bridge

I-74 WB Exit Ramp over Miller Ditch is a concrete culvert carrying I-74 WB Exit Ramp over Miller Ditch in Marion County, Indiana. It was built in 2003, so it is 22 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 2,550 vehicles a day, roughly 5% of them trucks, projected to reach 3,600 by 2030. The structure is 34 ft (10.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesI-74 WB Exit Ramp
CrossesMiller Ditch
Location02.43 E I-465
RouteInterstate 74
CountyMarion County
StateIndiana
Coordinates39.71591, -86.00737
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length34 ft (10.3 m)
Longest span15 ft (4.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,550 (2004)
Projected traffic3,600 by 2030
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-74 WB Exit Ramp over Miller Ditch built?

It was built in 2003, making it 22 years old in 2025.

What condition is I-74 WB Exit Ramp 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 July 2023.

How much traffic does I-74 WB Exit Ramp over Miller Ditch carry?

About 2,550 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is I-74 WB Exit Ramp over Miller Ditch?

The structure is 34 ft (10.3 m) long with a longest span of 15 ft (4.7 m).

Who owns I-74 WB Exit Ramp over Miller Ditch?

It is owned by the State Highway Agency.