US Bridges

ST 23 Blandford RD over I 90

Fair

Hampden County, Massachusetts · 1.1MI W of RT20/23 JCT C5 · Structure no. R130204GWDOTNBI

Built
1957
68 years old, rebuilt 1993
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
244 ft
2 main spans
Daily traffic
2,720
2010 count
Owner
State
State Highway Agency

About this bridge

ST 23 Blandford RD over I 90 is a steel continuous stringer/multi-beam or girder carrying ST 23 Blandford RD over I 90 in Hampden County, Massachusetts. It was built in 1957 and reconstructed in 1993, so it is 68 years old, older 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 2,720 vehicles a day, roughly 7% of them trucks, projected to reach 4,296 by 2031. The structure is 244 ft (74.5 m) long and 52 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesST 23 Blandford RD
CrossesI 90
Location1.1MI W of RT20/23 JCT C5
RouteState Highway 23
CountyHampden County
StateMassachusetts
Coordinates42.16553, -72.85199
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.3 US tons
Inventory rating37.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length244 ft (74.5 m)
Longest span68 ft (20.8 m)
Deck width52 ft (15.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,720 (2010)
Projected traffic4,296 by 2031
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.8 mi (11 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$11.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 23 Blandford RD over I 90 built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1993.

What condition is ST 23 Blandford RD over I 90 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 2024.

How much traffic does ST 23 Blandford RD over I 90 carry?

About 2,720 vehicles per day (2010 count), of which roughly 7% are trucks.

How long is ST 23 Blandford RD over I 90?

The structure is 244 ft (74.5 m) long with a longest span of 68 ft (20.8 m) and a deck 52 ft wide.

Who owns ST 23 Blandford RD over I 90?

It is owned by the State Highway Agency.