US Bridges

South ST over Swan Pond Brook

Good

York County, Maine · 1.0 Mo W of Tpke Overpass · Structure no. 3163

Built
2000
25 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
150 ft
1 main span
Daily traffic
3,840
2016 count
Owner
State
State Highway Agency

About this bridge

South ST over Swan Pond Brook is a steel stringer/multi-beam or girder carrying South ST over Swan Pond Brook in York County, Maine. It was built in 2000, so it is 25 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 3,840 vehicles a day, roughly 5% of them trucks, projected to reach 5,376 by 2036. The structure is 150 ft (45.8 m) long and 35 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesSouth ST
CrossesSwan Pond Brook
Location1.0 Mo W of Tpke Overpass
RouteCounty Highway 0
CountyYork County
StateMaine
Coordinates43.49823, -70.50892
Functional classRural Minor 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length150 ft (45.8 m)
Longest span148 ft (45 m)
Deck width35 ft (10.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,840 (2016)
Projected traffic5,376 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
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 South ST over Swan Pond Brook built?

It was built in 2000, making it 25 years old in 2025.

What condition is South ST over Swan Pond Brook 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 2023.

How much traffic does South ST over Swan Pond Brook carry?

About 3,840 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is South ST over Swan Pond Brook?

The structure is 150 ft (45.8 m) long with a longest span of 148 ft (45 m) and a deck 35 ft wide.

Who owns South ST over Swan Pond Brook?

It is owned by the State Highway Agency.