US Bridges

I 91 over US 5 Riverdale ST

Fair

Hampden County, Massachusetts · Mm 9.2 on I-91 · Structure no. W2104710WDOTNBI

Built
1966
59 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
129 ft
2 main spans
Daily traffic
87,448
2018 count
Owner
State
State Highway Agency

About this bridge

I 91 over US 5 Riverdale ST is a steel stringer/multi-beam or girder carrying I 91 over US 5 Riverdale ST in Hampden County, Massachusetts. It was built in 1966, so it is 59 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 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 87,448 vehicles a day, roughly 6% of them trucks, projected to reach 116,944 by 2032. The structure is 129 ft (39.2 m) long and 118 ft wide.

Location

Open in Google Maps
CarriesI 91
CrossesUS 5 Riverdale ST
LocationMm 9.2 on I-91
RouteInterstate 91
CountyHampden County
StateMassachusetts
Coordinates42.13619, -72.62569
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.1 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length129 ft (39.2 m)
Longest span61 ft (18.7 m)
Deck width118 ft (36 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic87,448 (2018)
Projected traffic116,944 by 2032
Trucks6%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$14 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 91 over US 5 Riverdale ST built?

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

What condition is I 91 over US 5 Riverdale ST 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 April 2023.

How much traffic does I 91 over US 5 Riverdale ST carry?

About 87,448 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is I 91 over US 5 Riverdale ST?

The structure is 129 ft (39.2 m) long with a longest span of 61 ft (18.7 m) and a deck 118 ft wide.

Who owns I 91 over US 5 Riverdale ST?

It is owned by the State Highway Agency.