US Bridges

Emerson Avenue over Massachusetts Conrail

Good

Marion County, Indiana · 00.60 N I-70 · Structure no. 4900154

Built
1969
56 years old, rebuilt 2012
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
361 ft
5 main spans
Daily traffic
32,511
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Emerson Avenue over Massachusetts Conrail is a steel continuous stringer/multi-beam or girder carrying Emerson Avenue over Massachusetts Conrail in Marion County, Indiana. It was built in 1969 and reconstructed in 2012, so it is 56 years old, older 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 32,511 vehicles a day, roughly 6% of them trucks, projected to reach 48,310 by 2039. The structure is 361 ft (110 m) long and 103 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesEmerson Avenue
CrossesMassachusetts Conrail
Location00.60 N I-70
RouteCity Street 2755
CountyMarion County
StateIndiana
Coordinates39.81104, -86.08338
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length361 ft (110 m)
Longest span75 ft (23 m)
Deck width103 ft (31.5 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,511 (2019)
Projected traffic48,310 by 2039
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Emerson Avenue over Massachusetts Conrail built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2012.

What condition is Emerson Avenue over Massachusetts Conrail 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 August 2024.

How much traffic does Emerson Avenue over Massachusetts Conrail carry?

About 32,511 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is Emerson Avenue over Massachusetts Conrail?

The structure is 361 ft (110 m) long with a longest span of 75 ft (23 m) and a deck 103 ft wide.

Who owns Emerson Avenue over Massachusetts Conrail?

It is owned by the City or Municipal Highway Agency.