US Bridges

Kingman RD over Macwahoc Stream

Poor

Aroostook County, Maine · .3 MI E JCT US 2 · Structure no. 5021

Built
1919
106 years old
Condition
Poor
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
94 ft
1 main span
Daily traffic
220
2016 count
Owner
State
State Highway Agency

About this bridge

Kingman RD over Macwahoc Stream is a steel stringer/multi-beam or girder carrying Kingman RD over Macwahoc Stream in Aroostook County, Maine. It was built in 1919, so it is 106 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 220 vehicles a day, roughly 5% of them trucks, projected to reach 352 by 2036. The structure is 94 ft (28.5 m) long and 31 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesKingman RD
CrossesMacwahoc Stream
Location.3 MI E JCT US 2
RouteCounty Highway 170
StateMaine
Coordinates45.62427, -68.25878
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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating46.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length94 ft (28.5 m)
Longest span90 ft (27.4 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2016)
Projected traffic352 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kingman RD over Macwahoc Stream built?

It was built in 1919, making it 106 years old in 2025.

What condition is Kingman RD over Macwahoc Stream 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 January 2025.

How much traffic does Kingman RD over Macwahoc Stream carry?

About 220 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Kingman RD over Macwahoc Stream?

The structure is 94 ft (28.5 m) long with a longest span of 90 ft (27.4 m) and a deck 31 ft wide.

Who owns Kingman RD over Macwahoc Stream?

It is owned by the State Highway Agency.