US Bridges

I-70 EB over Grassy Creek

Fair

Marion County, Indiana · 03.11 E I-465 · Structure no. 042750

Built
1967
58 years old, rebuilt 2012
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
31,813
2004 count
Owner
State
State Highway Agency

About this bridge

I-70 EB over Grassy Creek is a concrete continuous slab carrying I-70 EB over Grassy Creek in Marion County, Indiana. It was built in 1967 and reconstructed in 2012, so it is 58 years old, older than the Indiana 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 31,813 vehicles a day, roughly 5% of them trucks, projected to reach 63,372 by 2032. The structure is 110 ft (33.4 m) long and 65 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-70 EB
CrossesGrassy Creek
Location03.11 E I-465
RouteInterstate 70
CountyMarion County
StateIndiana
Coordinates39.80278, -85.97611
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length110 ft (33.4 m)
Longest span42 ft (12.9 m)
Deck width65 ft (19.8 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,813 (2004)
Projected traffic63,372 by 2032
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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-70 EB over Grassy Creek built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2012.

What condition is I-70 EB over Grassy Creek 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 January 2024.

How much traffic does I-70 EB over Grassy Creek carry?

About 31,813 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is I-70 EB over Grassy Creek?

The structure is 110 ft (33.4 m) long with a longest span of 42 ft (12.9 m) and a deck 65 ft wide.

Who owns I-70 EB over Grassy Creek?

It is owned by the State Highway Agency.