US Bridges

Main ST over Saco River West Channel

Good

York County, Maine · Saco/Biddeford T L · Structure no. 3423

Built
2004
21 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
223 ft
2 main spans
Daily traffic
21,430
2016 count
Owner
State
State Highway Agency

About this bridge

Main ST over Saco River West Channel is a steel continuous stringer/multi-beam or girder carrying Main ST over Saco River West Channel in York County, Maine. It was built in 2004, so it is 21 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 21,430 vehicles a day, roughly 5% of them trucks, projected to reach 30,002 by 2036. The structure is 223 ft (67.9 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMain ST
CrossesSaco River West Channel
LocationSaco/Biddeford T L
RouteCounty Highway 9
StateMaine
Coordinates43.49309, -70.44895
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating52.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length223 ft (67.9 m)
Longest span109 ft (33.1 m)
Deck width52 ft (16 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,430 (2016)
Projected traffic30,002 by 2036
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Main ST over Saco River West Channel built?

It was built in 2004, making it 21 years old in 2025.

What condition is Main ST over Saco River West Channel 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 August 2024.

How much traffic does Main ST over Saco River West Channel carry?

About 21,430 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main ST over Saco River West Channel?

The structure is 223 ft (67.9 m) long with a longest span of 109 ft (33.1 m) and a deck 52 ft wide.

Who owns Main ST over Saco River West Channel?

It is owned by the State Highway Agency.