US Bridges

ST 28 SB over RR Macrr

Fair

Barnstable County, Massachusetts · 1 M S of Bourne Tl · Structure no. F0303145UDOTNBI

Built
1960
65 years old
Condition
Fair
inspected November 2023
Type
Slab
Prestressed Concrete
Length
90 ft
3 main spans
Daily traffic
13,603
2022 count
Owner
State
State Highway Agency

About this bridge

ST 28 SB over RR Macrr is a prestressed concrete slab carrying ST 28 SB over RR Macrr in Barnstable County, Massachusetts. It was built in 1960, so it is 65 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 13,603 vehicles a day, roughly 5% of them trucks, projected to reach 26,374 by 2032. The structure is 90 ft (27.4 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesST 28 SB
CrossesRR Macrr
Location1 M S of Bourne Tl
RouteState Highway 28
CountyBarnstable County
StateMassachusetts
Coordinates41.64124, -70.60621
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
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 rating63.2 US tons
Inventory rating50.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadH 20
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width46 ft (14 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,603 (2022)
Projected traffic26,374 by 2032
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 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$3.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 28 SB over RR Macrr built?

It was built in 1960, making it 65 years old in 2025.

What condition is ST 28 SB over RR Macrr 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 2023.

How much traffic does ST 28 SB over RR Macrr carry?

About 13,603 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is ST 28 SB over RR Macrr?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 46 ft wide.

Who owns ST 28 SB over RR Macrr?

It is owned by the State Highway Agency.