US Bridges

W Kingfield RD over Alder Stream

Fair

Franklin County, Maine · 1.4 MI W JCT 16 · Structure no. 3374

Built
1949
76 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
632
2016 count
Owner
State
State Highway Agency

About this bridge

W Kingfield RD over Alder Stream is a concrete slab carrying W Kingfield RD over Alder Stream in Franklin County, Maine. It was built in 1949, so it is 76 years old, older than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 632 vehicles a day, roughly 5% of them trucks, projected to reach 1,011 by 2036. The structure is 30 ft (9 m) long and 26 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesW Kingfield RD
CrossesAlder Stream
Location1.4 MI W JCT 16
RouteCity Street 0
StateMaine
Coordinates44.95395, -70.1864
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length30 ft (9 m)
Longest span25 ft (7.6 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic632 (2016)
Projected traffic1,011 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 W Kingfield RD over Alder Stream built?

It was built in 1949, making it 76 years old in 2025.

What condition is W Kingfield RD over Alder Stream in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does W Kingfield RD over Alder Stream carry?

About 632 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is W Kingfield RD over Alder Stream?

The structure is 30 ft (9 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.

Who owns W Kingfield RD over Alder Stream?

It is owned by the State Highway Agency.