US Bridges

E Ridge RD over Olamon Stream

Fair

Penobscot County, Maine · 1 MI W of Spring Br RD · Structure no. 3034

Built
1954
71 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
533
2016 count
Owner
State
State Highway Agency

About this bridge

E Ridge RD over Olamon Stream is a concrete slab carrying E Ridge RD over Olamon Stream in Penobscot County, Maine. It was built in 1954, so it is 71 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 5 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 533 vehicles a day, roughly 5% of them trucks, projected to reach 853 by 2036. The structure is 33 ft (10.1 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesE Ridge RD
CrossesOlamon Stream
Location1 MI W of Spring Br RD
RouteCity Street 0
CountyPenobscot County
StateMaine
Coordinates45.12332, -68.59135
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic533 (2016)
Projected traffic853 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 E Ridge RD over Olamon Stream built?

It was built in 1954, making it 71 years old in 2025.

What condition is E Ridge RD over Olamon 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 August 2023.

How much traffic does E Ridge RD over Olamon Stream carry?

About 533 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is E Ridge RD over Olamon Stream?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns E Ridge RD over Olamon Stream?

It is owned by the State Highway Agency.