US Bridges

ST 2 A/Ftchbrg RD over Water Nashua River

Fair

Middlesex County, Massachusetts · At Ayer Shirley Town Line · Structure no. A1900226LDOTNBI

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
123 ft
1 main span
Daily traffic
6,959
2022 count
Owner
State
State Highway Agency

About this bridge

ST 2 A/Ftchbrg RD over Water Nashua River is a steel stringer/multi-beam or girder carrying ST 2 A/Ftchbrg RD over Water Nashua River in Middlesex County, Massachusetts. It was built in 1975, so it is 50 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 6,959 vehicles a day, roughly 5% of them trucks, projected to reach 9,002 by 2032. The structure is 123 ft (37.5 m) long and 48 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesST 2 A/Ftchbrg RD
CrossesWater Nashua River
LocationAt Ayer Shirley Town Line
RouteState Highway 20
CountyMiddlesex County
StateMassachusetts
Coordinates42.57812, -71.60966
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.6 US tons
Inventory rating41.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length123 ft (37.5 m)
Longest span120 ft (36.6 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,959 (2022)
Projected traffic9,002 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 2 A/Ftchbrg RD over Water Nashua River built?

It was built in 1975, making it 50 years old in 2025.

What condition is ST 2 A/Ftchbrg RD 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 ST 2 A/Ftchbrg RD over Water Nashua River carry?

About 6,959 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is ST 2 A/Ftchbrg RD over Water Nashua River?

The structure is 123 ft (37.5 m) long with a longest span of 120 ft (36.6 m) and a deck 48 ft wide.

Who owns ST 2 A/Ftchbrg RD over Water Nashua River?

It is owned by the State Highway Agency.