US Bridges

HWY I90&I91 Con over HWY Prospect Ave

Fair

Hampden County, Massachusetts · 0.2 M S of Highland Ave · Structure no. W21040158DOTNBI

Built
1968
57 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
18,234
2019 count
Owner
State
State Highway Agency

About this bridge

HWY I90&I91 Con over HWY Prospect Ave is a steel stringer/multi-beam or girder carrying HWY I90&I91 Con over HWY Prospect Ave in Hampden County, Massachusetts. It was built in 1968, so it is 57 years old, younger than the Massachusetts average of 63.8 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 18,234 vehicles a day, roughly 6% of them trucks, projected to reach 6,317 by 2032. The structure is 90 ft (27.5 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY I90&I91 Con
CrossesHWY Prospect Ave
Location0.2 M S of Highland Ave
RouteInterstate 91
CountyHampden County
StateMassachusetts
Coordinates42.15656, -72.63533
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.4 US tons
Inventory rating33.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length90 ft (27.5 m)
Longest span85 ft (25.8 m)
Deck width73 ft (22.3 m)
Roadway width58 ft (17.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,234 (2019)
Projected traffic6,317 by 2032
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$6.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY I90&I91 Con over HWY Prospect Ave built?

It was built in 1968, making it 57 years old in 2025.

What condition is HWY I90&I91 Con over HWY Prospect Ave 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 August 2023.

How much traffic does HWY I90&I91 Con over HWY Prospect Ave carry?

About 18,234 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is HWY I90&I91 Con over HWY Prospect Ave?

The structure is 90 ft (27.5 m) long with a longest span of 85 ft (25.8 m) and a deck 73 ft wide.

Who owns HWY I90&I91 Con over HWY Prospect Ave?

It is owned by the State Highway Agency.