US Bridges

Blacks Woods RD over Tunk Stream

Fair

Washington County, Maine · 0.1 MI E of TWP10 Md · Structure no. 2889

Built
1933
92 years old, rebuilt 1952
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
999
2016 count
Owner
State
State Highway Agency

About this bridge

Blacks Woods RD over Tunk Stream is a concrete culvert carrying Blacks Woods RD over Tunk Stream in Washington County, Maine. It was built in 1933 and reconstructed in 1952, so it is 92 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 999 vehicles a day, roughly 5% of them trucks, projected to reach 1,598 by 2036. The structure is 30 ft (9 m) long. If it were closed, the detour would be 36 mi (58 km).

Location

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CarriesBlacks Woods RD
CrossesTunk Stream
Location0.1 MI E of TWP10 Md
RouteState Highway 182
CountyWashington County
StateMaine
Coordinates44.60832, -67.99571
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating27.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length30 ft (9 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic999 (2016)
Projected traffic1,598 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 Blacks Woods RD over Tunk Stream built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1952.

What condition is Blacks Woods RD over Tunk 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 July 2023.

How much traffic does Blacks Woods RD over Tunk Stream carry?

About 999 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Blacks Woods RD over Tunk Stream?

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

Who owns Blacks Woods RD over Tunk Stream?

It is owned by the State Highway Agency.