US Bridges

HWY Cambridge ST over RR Pwrr

Fair

Worcester County, Massachusetts · Just W. of Southbridge ST · Structure no. W4402723ADOT634

Built
1935
90 years old, rebuilt 1977
Condition
Fair
inspected July 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
11,895
2021 count
Owner
State
State Highway Agency

About this bridge

HWY Cambridge ST over RR Pwrr is a steel stringer/multi-beam or girder carrying HWY Cambridge ST over RR Pwrr in Worcester County, Massachusetts. It was built in 1935 and reconstructed in 1977, so it is 90 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 11,895 vehicles a day, roughly 6% of them trucks, projected to reach 28,427 by 2031. The structure is 71 ft (21.6 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Cambridge ST
CrossesRR Pwrr
LocationJust W. of Southbridge ST
RouteCity Street 0
CountyWorcester County
StateMassachusetts
Coordinates42.24357, -71.81472
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.
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 inspectionJuly 2022
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating66.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span69 ft (21 m)
Deck width39 ft (12 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,895 (2021)
Projected traffic28,427 by 2031
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Cambridge ST over RR Pwrr built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1977.

What condition is HWY Cambridge ST over RR Pwrr 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 July 2022.

How much traffic does HWY Cambridge ST over RR Pwrr carry?

About 11,895 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is HWY Cambridge ST over RR Pwrr?

The structure is 71 ft (21.6 m) long with a longest span of 69 ft (21 m) and a deck 39 ft wide.

Who owns HWY Cambridge ST over RR Pwrr?

It is owned by the State Highway Agency.