US Bridges

ST151 Nathan Ellis over RR Macrr (otis Spur)

Fair

Barnstable County, Massachusetts · 0.75 M S of Bourne Tl · Structure no. F030264BPDOT634

Built
1941
84 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
122 ft
3 main spans
Daily traffic
40,345
2024 count
Owner
State
State Highway Agency

About this bridge

ST151 Nathan Ellis over RR Macrr (otis Spur) is a steel continuous stringer/multi-beam or girder carrying ST151 Nathan Ellis over RR Macrr (otis Spur) in Barnstable County, Massachusetts. It was built in 1941, so it is 84 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 40,345 vehicles a day, roughly 8% of them trucks, projected to reach 36,956 by 2031. The structure is 122 ft (37.2 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesST151 Nathan Ellis
CrossesRR Macrr (otis Spur)
Location0.75 M S of Bourne Tl
RouteState Highway 151
CountyBarnstable County
StateMassachusetts
Coordinates41.64107, -70.59658
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length122 ft (37.2 m)
Longest span42 ft (12.8 m)
Deck width40 ft (12.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,345 (2024)
Projected traffic36,956 by 2031
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$7.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST151 Nathan Ellis over RR Macrr (otis Spur) built?

It was built in 1941, making it 84 years old in 2025.

What condition is ST151 Nathan Ellis over RR Macrr (otis Spur) 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 September 2024.

How much traffic does ST151 Nathan Ellis over RR Macrr (otis Spur) carry?

About 40,345 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is ST151 Nathan Ellis over RR Macrr (otis Spur)?

The structure is 122 ft (37.2 m) long with a longest span of 42 ft (12.8 m) and a deck 40 ft wide.

Who owns ST151 Nathan Ellis over RR Macrr (otis Spur)?

It is owned by the State Highway Agency.