US Bridges

Mt Hope-Dover over I-80

Fair

Morris County, New Jersey · 1.31 MI E of Nj 15 · Structure no. 1413160

Built
1958
67 years old, rebuilt 1986
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
163 ft
2 main spans
Daily traffic
11,255
2023 count
Owner
State
State Highway Agency

About this bridge

Mt Hope-Dover over I-80 is a prestressed concrete stringer/multi-beam or girder carrying Mt Hope-Dover over I-80 in Morris County, New Jersey. It was built in 1958 and reconstructed in 1986, so it is 67 years old, older than the New Jersey average of 58.5 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 11,255 vehicles a day, roughly 4% of them trucks, projected to reach 13,731 by 2043. The structure is 163 ft (49.7 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMt Hope-Dover
CrossesI-80
Location1.31 MI E of Nj 15
RouteCounty Highway 661
CountyMorris County
StateNew Jersey
Coordinates40.91045, -74.54751
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length163 ft (49.7 m)
Longest span79 ft (24.1 m)
Deck width90 ft (27.3 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,255 (2023)
Projected traffic13,731 by 2043
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mt Hope-Dover over I-80 built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1986.

What condition is Mt Hope-Dover over I-80 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 March 2023.

How much traffic does Mt Hope-Dover over I-80 carry?

About 11,255 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Mt Hope-Dover over I-80?

The structure is 163 ft (49.7 m) long with a longest span of 79 ft (24.1 m) and a deck 90 ft wide.

Who owns Mt Hope-Dover over I-80?

It is owned by the State Highway Agency.