US Bridges

I-70 WB to I-465 S over I-465 East 21st Street

Fair

Marion County, Indiana · 01.48 N US 40 · Structure no. 049955

Built
1977
48 years old, rebuilt 2003
Condition
Fair
inspected May 2024
Type
Segmental Box Girder
Prestressed Concrete Continuous
Length
779 ft
5 main spans
Daily traffic
11,692
2021 count
Owner
State
State Highway Agency

About this bridge

I-70 WB to I-465 S over I-465 East 21st Street is a prestressed concrete continuous segmental box girder carrying I-70 WB to I-465 S over I-465 East 21st Street in Marion County, Indiana. It was built in 1977 and reconstructed in 2003, so it is 48 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 5 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 11,692 vehicles a day, roughly 10% of them trucks, projected to reach 20,000 by 2035. The structure is 779 ft (237.4 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI-70 WB to I-465 S
CrossesI-465 East 21st Street
Location01.48 N US 40
RouteInterstate 465
StateIndiana
Coordinates39.79601, -86.03507
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating17.9 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length779 ft (237.4 m)
Longest span179 ft (54.5 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,692 (2021)
Projected traffic20,000 by 2035
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-70 WB to I-465 S over I-465 East 21st Street built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2003.

What condition is I-70 WB to I-465 S over I-465 East 21st Street 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 May 2024.

How much traffic does I-70 WB to I-465 S over I-465 East 21st Street carry?

About 11,692 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is I-70 WB to I-465 S over I-465 East 21st Street?

The structure is 779 ft (237.4 m) long with a longest span of 179 ft (54.5 m) and a deck 43 ft wide.

Who owns I-70 WB to I-465 S over I-465 East 21st Street?

It is owned by the State Highway Agency.