US Bridges

HWY Nashawena ST over Water W Falmouth Harbor

Fair

Barnstable County, Massachusetts · .7 MI W of RTE 28 · Structure no. F0301043GMUNNBI

Built
1992
33 years old
Condition
Fair
inspected October 2023
Type
Slab
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
4,655
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Nashawena ST over Water W Falmouth Harbor is a prestressed concrete slab carrying HWY Nashawena ST over Water W Falmouth Harbor in Barnstable County, Massachusetts. It was built in 1992, so it is 33 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 4,655 vehicles a day, roughly 6% of them trucks, projected to reach 6,001 by 2032. The structure is 25 ft (7.5 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesHWY Nashawena ST
CrossesWater W Falmouth Harbor
Location.7 MI W of RTE 28
RouteCity Street 0
Coordinates41.60876, -70.63714
Functional classUrban Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating83.1 US tons
Inventory rating49.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span21 ft (6.5 m)
Deck width40 ft (12.2 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,655 (2023)
Projected traffic6,001 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Nashawena ST over Water W Falmouth Harbor built?

It was built in 1992, making it 33 years old in 2025.

What condition is HWY Nashawena ST over Water W Falmouth Harbor 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 October 2023.

How much traffic does HWY Nashawena ST over Water W Falmouth Harbor carry?

About 4,655 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is HWY Nashawena ST over Water W Falmouth Harbor?

The structure is 25 ft (7.5 m) long with a longest span of 21 ft (6.5 m) and a deck 40 ft wide.

Who owns HWY Nashawena ST over Water W Falmouth Harbor?

It is owned by the Town or Township Highway Agency.