US Bridges

Central ST over Millinocket Stream

Good

Penobscot County, Maine · 2.MI E T-3 Townline · Structure no. 2570

Built
1991
34 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
8,456
2016 count
Owner
State
State Highway Agency

About this bridge

Central ST over Millinocket Stream is a steel stringer/multi-beam or girder carrying Central ST over Millinocket Stream in Penobscot County, Maine. It was built in 1991, so it is 34 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 8,456 vehicles a day, roughly 5% of them trucks, projected to reach 11,838 by 2036. The structure is 62 ft (19 m) long and 67 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesCentral ST
CrossesMillinocket Stream
Location2.MI E T-3 Townline
RouteState Highway 11
StateMaine
Coordinates45.65745, -68.70467
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating47.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length62 ft (19 m)
Longest span57 ft (17.3 m)
Deck width67 ft (20.5 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,456 (2016)
Projected traffic11,838 by 2036
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Central ST over Millinocket Stream built?

It was built in 1991, making it 34 years old in 2025.

What condition is Central ST over Millinocket Stream 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 October 2024.

How much traffic does Central ST over Millinocket Stream carry?

About 8,456 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Central ST over Millinocket Stream?

The structure is 62 ft (19 m) long with a longest span of 57 ft (17.3 m) and a deck 67 ft wide.

Who owns Central ST over Millinocket Stream?

It is owned by the State Highway Agency.