US Bridges

Blackstrap RD over Presumpscot River

Fair

Cumberland County, Maine · 1.8 MI N of JCT RTE 26 · Structure no. 5553

Built
1961
64 years old, rebuilt 2019
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
169 ft
3 main spans
Daily traffic
3,647
2016 count
Owner
State
State Highway Agency

About this bridge

Blackstrap RD over Presumpscot River is a steel stringer/multi-beam or girder carrying Blackstrap RD over Presumpscot River in Cumberland County, Maine. It was built in 1961 and reconstructed in 2019, so it is 64 years old, older than the Maine average of 53.7 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 3,647 vehicles a day, roughly 5% of them trucks, projected to reach 5,106 by 2036. The structure is 169 ft (51.5 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBlackstrap RD
CrossesPresumpscot River
Location1.8 MI N of JCT RTE 26
RouteCounty Highway 0
CountyCumberland County
StateMaine
Coordinates43.72449, -70.30255
Functional classUrban Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length169 ft (51.5 m)
Longest span60 ft (18.3 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,647 (2016)
Projected traffic5,106 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Blackstrap RD over Presumpscot River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2019.

What condition is Blackstrap RD over Presumpscot River 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 Blackstrap RD over Presumpscot River carry?

About 3,647 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Blackstrap RD over Presumpscot River?

The structure is 169 ft (51.5 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.

Who owns Blackstrap RD over Presumpscot River?

It is owned by the State Highway Agency.