US Bridges

ST137 Brwstr Chtm over US 6 Mid Cape HWY

Fair

Barnstable County, Massachusetts · 3.25 M W of Orleans Tl · Structure no. H100144A9DOTNBI

Built
1955
70 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
123 ft
3 main spans
Daily traffic
12,900
2018 count
Owner
State
State Highway Agency

About this bridge

ST137 Brwstr Chtm over US 6 Mid Cape HWY is a steel continuous stringer/multi-beam or girder carrying ST137 Brwstr Chtm 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.

It carries about 12,900 vehicles a day, roughly 6% of them trucks, projected to reach 28,427 by 2033. The structure is 123 ft (37.4 m) long and 54 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesST137 Brwstr Chtm
CrossesUS 6 Mid Cape HWY
Location3.25 M W of Orleans Tl
RouteState Highway 137
CountyBarnstable County
StateMassachusetts
Coordinates41.72265, -70.03487
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.6 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 length123 ft (37.4 m)
Longest span65 ft (19.7 m)
Deck width54 ft (16.5 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,900 (2018)
Projected traffic28,427 by 2033
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 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$6.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST137 Brwstr Chtm over US 6 Mid Cape HWY built?

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

What condition is ST137 Brwstr Chtm 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 April 2024.

How much traffic does ST137 Brwstr Chtm over US 6 Mid Cape HWY carry?

About 12,900 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is ST137 Brwstr Chtm over US 6 Mid Cape HWY?

The structure is 123 ft (37.4 m) long with a longest span of 65 ft (19.7 m) and a deck 54 ft wide.

Who owns ST137 Brwstr Chtm over US 6 Mid Cape HWY?

It is owned by the State Highway Agency.