US Bridges

ST124 Plsnt Lk Ave over US 6 Mid Cape HWY

FairPosted for load

Barnstable County, Massachusetts · 2.5 M W of RTE 137 · Structure no. H1001349VDOTNBI

Built
1955
70 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
131 ft
3 main spans
Daily traffic
17,586
2024 count
Owner
State
State Highway Agency

About this bridge

ST124 Plsnt Lk Ave over US 6 Mid Cape HWY is a steel continuous stringer/multi-beam or girder carrying ST124 Plsnt Lk Ave over US 6 Mid Cape HWY in Barnstable County, Massachusetts. It was built in 1955, so it is 70 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 17,586 vehicles a day, roughly 5% of them trucks, projected to reach 31,586 by 2031. The structure is 131 ft (39.9 m) long and 53 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

Location

Open in Google Maps
CarriesST124 Plsnt Lk Ave
CrossesUS 6 Mid Cape HWY
Location2.5 M W of RTE 137
RouteState Highway 124
CountyBarnstable County
StateMassachusetts
Coordinates41.70581, -70.07693
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating31.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length131 ft (39.9 m)
Longest span68 ft (20.6 m)
Deck width53 ft (16.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,586 (2024)
Projected traffic31,586 by 2031
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed4.3 mi (7 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$6.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST124 Plsnt Lk Ave over US 6 Mid Cape HWY built?

It was built in 1955, making it 70 years old in 2025.

What condition is ST124 Plsnt Lk Ave over US 6 Mid Cape HWY 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 November 2024.

How much traffic does ST124 Plsnt Lk Ave over US 6 Mid Cape HWY carry?

About 17,586 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is ST124 Plsnt Lk Ave over US 6 Mid Cape HWY?

The structure is 131 ft (39.9 m) long with a longest span of 68 ft (20.6 m) and a deck 53 ft wide.

Who owns ST124 Plsnt Lk Ave over US 6 Mid Cape HWY?

It is owned by the State Highway Agency.