US Bridges

Norridgewock RD over Martin Stream

Fair

Somerset County, Maine · 0.5 MI S of Norridgewock · Structure no. 3969

Built
1952
73 years old, rebuilt 1971
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
33 ft
1 main span
Daily traffic
6,273
2016 count
Owner
State
State Highway Agency

About this bridge

Norridgewock RD over Martin Stream is a concrete culvert carrying Norridgewock RD over Martin Stream in Somerset County, Maine. It was built in 1952 and reconstructed in 1971, so it is 73 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 6,273 vehicles a day, roughly 5% of them trucks, projected to reach 8,782 by 2036. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesNorridgewock RD
CrossesMartin Stream
Location0.5 MI S of Norridgewock
RouteState Highway 139
CountySomerset County
StateMaine
Coordinates44.68066, -69.72487
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating47.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span28 ft (8.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,273 (2016)
Projected traffic8,782 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 Norridgewock RD over Martin Stream built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1971.

What condition is Norridgewock RD over Martin 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 December 2023.

How much traffic does Norridgewock RD over Martin Stream carry?

About 6,273 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Norridgewock RD over Martin Stream?

The structure is 33 ft (10.1 m) long with a longest span of 28 ft (8.6 m).

Who owns Norridgewock RD over Martin Stream?

It is owned by the State Highway Agency.