US Bridges

US 20 Wilbraham ST over Water Quaboag River

Fair

Hampden County, Massachusetts · .3 M W of Int W N.Main ST · Structure no. P0102118UDOTNBI

Built
1910
115 years old, rebuilt 1930
Condition
Fair
inspected October 2023
Type
Arch - Deck
Masonry
Length
100 ft
3 main spans
Daily traffic
13,981
2019 count
Owner
State
State Highway Agency

About this bridge

US 20 Wilbraham ST over Water Quaboag River is a masonry arch - deck carrying US 20 Wilbraham ST over Water Quaboag River in Hampden County, Massachusetts. It was built in 1910 and reconstructed in 1930, so it is 115 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 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 13,981 vehicles a day, roughly 1% of them trucks, projected to reach 14,296 by 2032. The structure is 100 ft (30.6 m) long and 56 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesUS 20 Wilbraham ST
CrossesWater Quaboag River
Location.3 M W of Int W N.Main ST
RouteU.S. Route 20
CountyHampden County
StateMassachusetts
Coordinates42.16145, -72.34899
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans3
Design loadUnknown
Structure length100 ft (30.6 m)
Longest span50 ft (15.1 m)
Deck width56 ft (17.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,981 (2019)
Projected traffic14,296 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$871,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 20 Wilbraham ST over Water Quaboag River built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1930.

What condition is US 20 Wilbraham ST over Water Quaboag River 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 October 2023.

How much traffic does US 20 Wilbraham ST over Water Quaboag River carry?

About 13,981 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is US 20 Wilbraham ST over Water Quaboag River?

The structure is 100 ft (30.6 m) long with a longest span of 50 ft (15.1 m) and a deck 56 ft wide.

Who owns US 20 Wilbraham ST over Water Quaboag River?

It is owned by the State Highway Agency.