US Bridges

ST 2 over Water Nashoba Brook

Fair

Middlesex County, Massachusetts · 0.8 KM NW Rt 2 Rotary · Structure no. C190182GRDOTNBI

Built
1951
74 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
43,300
2024 count
Owner
State
State Highway Agency

About this bridge

ST 2 over Water Nashoba Brook is a concrete slab carrying ST 2 over Water Nashoba Brook in Middlesex County, Massachusetts. It was built in 1951, so it is 74 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 43,300 vehicles a day, roughly 3% of them trucks, projected to reach 94,126 by 2031. The structure is 28 ft (8.5 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesST 2
CrossesWater Nashoba Brook
Location0.8 KM NW Rt 2 Rotary
RouteState Highway 2
Coordinates42.46906, -71.40659
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.
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.4 US tons
Inventory rating58.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length28 ft (8.5 m)
Longest span25 ft (7.6 m)
Deck width100 ft (30.5 m)
Roadway width92 ft (27.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,300 (2024)
Projected traffic94,126 by 2031
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$536,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 2 over Water Nashoba Brook built?

It was built in 1951, making it 74 years old in 2025.

What condition is ST 2 over Water Nashoba Brook 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 August 2024.

How much traffic does ST 2 over Water Nashoba Brook carry?

About 43,300 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is ST 2 over Water Nashoba Brook?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 100 ft wide.

Who owns ST 2 over Water Nashoba Brook?

It is owned by the State Highway Agency.