US Bridges

N680-E84 Connector over SR 84 (calaveras Road)

Good

Alameda County, California · 04-ALA-680-R11.03 · Structure no. 33 0351G

Built
2025
0 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
178 ft
3 main spans
Daily traffic
14,000
2025 count
Owner
State
State Highway Agency

About this bridge

N680-E84 Connector over SR 84 (calaveras Road) is a prestressed concrete continuous stringer/multi-beam or girder carrying N680-E84 Connector over SR 84 (calaveras Road) in Alameda County, California. It was built in 2025, so it is 0 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,000 vehicles a day, roughly 8% of them trucks, projected to reach 18,000 by 2045. The structure is 178 ft (54.3 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN680-E84 Connector
CrossesSR 84 (calaveras Road)
Location04-ALA-680-R11.03
RouteInterstate 680
CountyAlameda County
StateCalifornia
Coordinates37.58852, -121.87058
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length178 ft (54.3 m)
Longest span69 ft (21 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,000 (2025)
Projected traffic18,000 by 2045
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was N680-E84 Connector over SR 84 (calaveras Road) built?

It was built in 2025, making it 0 years old in 2025.

What condition is N680-E84 Connector over SR 84 (calaveras Road) 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 January 2025.

How much traffic does N680-E84 Connector over SR 84 (calaveras Road) carry?

About 14,000 vehicles per day (2025 count), of which roughly 8% are trucks.

How long is N680-E84 Connector over SR 84 (calaveras Road)?

The structure is 178 ft (54.3 m) long with a longest span of 69 ft (21 m) and a deck 30 ft wide.

Who owns N680-E84 Connector over SR 84 (calaveras Road)?

It is owned by the State Highway Agency.