US Bridges

Township Line Road over I-465

PoorPosted for load

Marion County, Indiana · 01.35 E US 421 · Structure no. 050530

Built
1966
59 years old, rebuilt 1981
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
212 ft
4 main spans
Daily traffic
17,386
2021 count
Owner
State
State Highway Agency

About this bridge

Township Line Road over I-465 is a concrete continuous stringer/multi-beam or girder carrying Township Line Road over I-465 in Marion County, Indiana. It was built in 1966 and reconstructed in 1981, so it is 59 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 17,386 vehicles a day, roughly 5% of them trucks, projected to reach 15,771 by 2035. The structure is 212 ft (64.6 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesTownship Line Road
CrossesI-465
Location01.35 E US 421
RouteCity Street 0
CountyMarion County
StateIndiana
Coordinates39.92416, -86.20308
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.7 US tons
Inventory rating17.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length212 ft (64.6 m)
Longest span66 ft (20 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,386 (2021)
Projected traffic15,771 by 2035
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Township Line Road over I-465 built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1981.

What condition is Township Line Road over I-465 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Township Line Road over I-465 carry?

About 17,386 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Township Line Road over I-465?

The structure is 212 ft (64.6 m) long with a longest span of 66 ft (20 m) and a deck 34 ft wide.

Who owns Township Line Road over I-465?

It is owned by the State Highway Agency.