US Bridges

Portland RD over Kennebunk River

Good

York County, Maine · 1.1MI N JCT RTE 9A & 35 · Structure no. 2041

Built
2016
9 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
15,672
2016 count
Owner
State
State Highway Agency

About this bridge

Portland RD over Kennebunk River is a prestressed concrete stringer/multi-beam or girder carrying Portland RD over Kennebunk River in York County, Maine. It was built in 2016, so it is 9 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,672 vehicles a day, roughly 5% of them trucks, projected to reach 21,941 by 2036. The structure is 80 ft (24.4 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesPortland RD
CrossesKennebunk River
Location1.1MI N JCT RTE 9A & 35
RouteState Highway 1
StateMaine
Coordinates43.40287, -70.52624
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating30.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length80 ft (24.4 m)
Longest span76 ft (23.2 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,672 (2016)
Projected traffic21,941 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Portland RD over Kennebunk River built?

It was built in 2016, making it 9 years old in 2025.

What condition is Portland RD over Kennebunk River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Portland RD over Kennebunk River carry?

About 15,672 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Portland RD over Kennebunk River?

The structure is 80 ft (24.4 m) long with a longest span of 76 ft (23.2 m) and a deck 43 ft wide.

Who owns Portland RD over Kennebunk River?

It is owned by the State Highway Agency.