US Bridges

Spruce Head RD over Weskeag River

Good

Knox County, Maine · 1.2 MI SW of Owls Head Tl · Structure no. 2425

Built
2017
8 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
99 ft
1 main span
Daily traffic
3,910
2016 count
Owner
State
State Highway Agency

About this bridge

Spruce Head RD over Weskeag River is a prestressed concrete stringer/multi-beam or girder carrying Spruce Head RD over Weskeag River in Knox County, Maine. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,910 vehicles a day, roughly 5% of them trucks, projected to reach 5,474 by 2036. The structure is 99 ft (30.2 m) long and 36 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesSpruce Head RD
CrossesWeskeag River
Location1.2 MI SW of Owls Head Tl
RouteCounty Highway 73
StateMaine
Coordinates44.05172, -69.126
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
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 rating81.5 US tons
Inventory rating62.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadGreater than HL 93
Structure length99 ft (30.2 m)
Longest span95 ft (29 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,910 (2016)
Projected traffic5,474 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed19.3 mi (31 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Spruce Head RD over Weskeag River built?

It was built in 2017, making it 8 years old in 2025.

What condition is Spruce Head RD over Weskeag River 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 December 2024.

How much traffic does Spruce Head RD over Weskeag River carry?

About 3,910 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Spruce Head RD over Weskeag River?

The structure is 99 ft (30.2 m) long with a longest span of 95 ft (29 m) and a deck 36 ft wide.

Who owns Spruce Head RD over Weskeag River?

It is owned by the State Highway Agency.