US Bridges

Ramp on Off over Route 1

Fair

Cumberland County, Maine · I95 Spur Interchange · Structure no. 5921

Built
1955
70 years old, rebuilt 1990
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
185 ft
4 main spans
Daily traffic
2,240
2016 count
Owner
State
State Highway Agency

About this bridge

Ramp on Off over Route 1 is a steel continuous stringer/multi-beam or girder carrying Ramp on Off over Route 1 in Cumberland County, Maine. It was built in 1955 and reconstructed in 1990, so it is 70 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 2,240 vehicles a day, roughly 10% of them trucks, projected to reach 3,136 by 2036. The structure is 185 ft (56.5 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesRamp on Off
CrossesRoute 1
LocationI95 Spur Interchange
RouteState Highway 0
CountyCumberland County
StateMaine
Coordinates43.73012, -70.22895
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionDecember 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 geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating62.2 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length185 ft (56.5 m)
Longest span51 ft (15.5 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,240 (2016)
Projected traffic3,136 by 2036
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp on Off over Route 1 built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1990.

What condition is Ramp on Off over Route 1 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 December 2024.

How much traffic does Ramp on Off over Route 1 carry?

About 2,240 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Ramp on Off over Route 1?

The structure is 185 ft (56.5 m) long with a longest span of 51 ft (15.5 m) and a deck 36 ft wide.

Who owns Ramp on Off over Route 1?

It is owned by the State Highway Agency.