US Bridges

HWY Groton ST over Water Nashua River

Fair

Middlesex County, Massachusetts · .2 Mi. N. of Rt. 113 · Structure no. P0600425WMUNNBI

Built
1962
63 years old, rebuilt 2010
Condition
Fair
inspected July 2023
Type
Truss - Thru
Wood or Timber
Length
192 ft
1 main span
Daily traffic
2,581
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Groton ST over Water Nashua River is a wood or timber truss - thru carrying HWY Groton ST over Water Nashua River in Middlesex County, Massachusetts. It was built in 1962 and reconstructed in 2010, so it is 63 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 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 2,581 vehicles a day, roughly 6% of them trucks, projected to reach 7,896 by 2032. The structure is 192 ft (58.4 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Groton ST
CrossesWater Nashua River
Location.2 Mi. N. of Rt. 113
RouteCity Street 0
CountyMiddlesex County
StateMassachusetts
Coordinates42.66972, -71.57509
Functional classUrban Minor 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.
Superstructure7 GoodSome minor problems.
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.4 US tons
Inventory rating40.3 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1 (+2 approach)
Design loadHS 20
Structure length192 ft (58.4 m)
Longest span94 ft (28.7 m)
Deck width48 ft (14.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic2,581 (2020)
Projected traffic7,896 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$8.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Groton ST over Water Nashua River built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2010.

What condition is HWY Groton ST over Water Nashua 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 July 2023.

How much traffic does HWY Groton ST over Water Nashua River carry?

About 2,581 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is HWY Groton ST over Water Nashua River?

The structure is 192 ft (58.4 m) long with a longest span of 94 ft (28.7 m) and a deck 48 ft wide.

Who owns HWY Groton ST over Water Nashua River?

It is owned by the Town or Township Highway Agency.