US Bridges

HWY Oak Hill RD over Water N Nashua River

PoorPosted for load

Worcester County, Massachusetts · At JCT of RTE 31 · Structure no. F040051ENMUNNBI

Built
1900
125 years old, rebuilt 1986
Condition
Poor
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
87 ft
2 main spans
Daily traffic
2,800
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Oak Hill RD over Water N Nashua River is a steel stringer/multi-beam or girder carrying HWY Oak Hill RD over Water N Nashua River in Worcester County, Massachusetts. It was built in 1900 and reconstructed in 1986, so it is 125 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 2,800 vehicles a day, roughly 3% of them trucks, projected to reach 5,528 by 2032. The structure is 87 ft (26.5 m) long and 51 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHWY Oak Hill RD
CrossesWater N Nashua River
LocationAt JCT of RTE 31
RouteCity Street 0
Coordinates42.58118, -71.82204
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.6 US tons
Inventory rating24.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length87 ft (26.5 m)
Longest span41 ft (12.5 m)
Deck width51 ft (15.4 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2023)
Projected traffic5,528 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$9.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Oak Hill RD over Water N Nashua River built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1986.

What condition is HWY Oak Hill RD over Water N Nashua River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does HWY Oak Hill RD over Water N Nashua River carry?

About 2,800 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is HWY Oak Hill RD over Water N Nashua River?

The structure is 87 ft (26.5 m) long with a longest span of 41 ft (12.5 m) and a deck 51 ft wide.

Who owns HWY Oak Hill RD over Water N Nashua River?

It is owned by the City or Municipal Highway Agency.