US Bridges

Riley RD over Androscoggin River

Poor

Franklin County, Maine · .2 MI W JCT 4 · Structure no. 6050

Built
1966
59 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
371 ft
6 main spans
Daily traffic
4,890
2016 count
Owner
State
State Highway Agency

About this bridge

Riley RD over Androscoggin River is a steel continuous stringer/multi-beam or girder carrying Riley RD over Androscoggin River in Franklin County, Maine. It was built in 1966, so it is 59 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 4,890 vehicles a day, roughly 5% of them trucks, projected to reach 6,846 by 2036. The structure is 371 ft (113.1 m) long and 36 ft wide.

Location

Open in Google Maps
CarriesRiley RD
CrossesAndroscoggin River
Location.2 MI W JCT 4
RouteCounty Highway 0
CountyFranklin County
StateMaine
Coordinates44.50156, -70.21661
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.1 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length371 ft (113.1 m)
Longest span145 ft (44.2 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,890 (2016)
Projected traffic6,846 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Riley RD over Androscoggin River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Riley RD over Androscoggin 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 September 2023.

How much traffic does Riley RD over Androscoggin River carry?

About 4,890 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Riley RD over Androscoggin River?

The structure is 371 ft (113.1 m) long with a longest span of 145 ft (44.2 m) and a deck 36 ft wide.

Who owns Riley RD over Androscoggin River?

It is owned by the State Highway Agency.