US Bridges

ST 28 Bourne Br RD over US 6

Fair

Barnstable County, Massachusetts · 190FT N of Bourne Bridge · Structure no. B1701945LDOTNBI

Built
1985
40 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
153 ft
1 main span
Daily traffic
41,801
2022 count
Owner
State
State Highway Agency

About this bridge

ST 28 Bourne Br RD over US 6 is a steel stringer/multi-beam or girder carrying ST 28 Bourne Br RD over US 6 in Barnstable County, Massachusetts. It was built in 1985, so it is 40 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 41,801 vehicles a day, roughly 14% of them trucks, projected to reach 70,911 by 2032. The structure is 153 ft (46.6 m) long and 55 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesST 28 Bourne Br RD
CrossesUS 6
Location190FT N of Bourne Bridge
RouteState Highway 28
CountyBarnstable County
StateMassachusetts
Coordinates41.75182, -70.59223
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 rating78.7 US tons
Inventory rating47.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length153 ft (46.6 m)
Longest span150 ft (45.7 m)
Deck width55 ft (16.7 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,801 (2022)
Projected traffic70,911 by 2032
Trucks14%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$9.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 28 Bourne Br RD over US 6 built?

It was built in 1985, making it 40 years old in 2025.

What condition is ST 28 Bourne Br RD over US 6 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 ST 28 Bourne Br RD over US 6 carry?

About 41,801 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is ST 28 Bourne Br RD over US 6?

The structure is 153 ft (46.6 m) long with a longest span of 150 ft (45.7 m) and a deck 55 ft wide.

Who owns ST 28 Bourne Br RD over US 6?

It is owned by the State Highway Agency.