US Bridges

Roundabout RD over Nezinscot R.

Fair

Oxford County, Maine · .3 MI Swly JCT of 117 · Structure no. 5451

Built
1977
48 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
126 ft
1 main span
Daily traffic
1,156
2016 count
Owner
State
State Highway Agency

About this bridge

Roundabout RD over Nezinscot R. is a steel stringer/multi-beam or girder carrying Roundabout RD over Nezinscot R. in Oxford County, Maine. It was built in 1977, so it is 48 years old, younger 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 1,156 vehicles a day, roughly 5% of them trucks, projected to reach 1,734 by 2036. The structure is 126 ft (38.3 m) long and 32 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

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CarriesRoundabout RD
CrossesNezinscot R.
Location.3 MI Swly JCT of 117
RouteCounty Highway 124
CountyOxford County
StateMaine
Coordinates44.26495, -70.32821
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating46.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length126 ft (38.3 m)
Longest span120 ft (36.6 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,156 (2016)
Projected traffic1,734 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 Roundabout RD over Nezinscot R. built?

It was built in 1977, making it 48 years old in 2025.

What condition is Roundabout RD over Nezinscot R. 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 Roundabout RD over Nezinscot R. carry?

About 1,156 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Roundabout RD over Nezinscot R.?

The structure is 126 ft (38.3 m) long with a longest span of 120 ft (36.6 m) and a deck 32 ft wide.

Who owns Roundabout RD over Nezinscot R.?

It is owned by the State Highway Agency.