US Bridges

Main ST over Royal River

Poor

Cumberland County, Maine · 0.1 MI E JCT RTE 115 · Structure no. 2272

Built
1930
95 years old
Condition
Poor
inspected May 2024
Type
Arch - Deck
Concrete
Length
125 ft
1 main span
Daily traffic
4,910
2016 count
Owner
State
State Highway Agency

About this bridge

Main ST over Royal River is a concrete arch - deck carrying Main ST over Royal River in Cumberland County, Maine. It was built in 1930, so it is 95 years old, older than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,910 vehicles a day, roughly 5% of them trucks, projected to reach 6,874 by 2036. The structure is 125 ft (38.1 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMain ST
CrossesRoyal River
Location0.1 MI E JCT RTE 115
RouteCounty Highway 88
CountyCumberland County
StateMaine
Coordinates43.79841, -70.17807
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be 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 rating95 US tons
Inventory rating73.2 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length125 ft (38.1 m)
Longest span75 ft (22.9 m)
Deck width40 ft (12.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,910 (2016)
Projected traffic6,874 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Main ST over Royal River built?

It was built in 1930, making it 95 years old in 2025.

What condition is Main ST over Royal River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Main ST over Royal River carry?

About 4,910 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over Royal River?

The structure is 125 ft (38.1 m) long with a longest span of 75 ft (22.9 m) and a deck 40 ft wide.

Who owns Main ST over Royal River?

It is owned by the State Highway Agency.