Interstate 680 over Blum Road

Poor Condition64 years old118,000 vehicles/day

Location

StateCalifornia
CountyContra Costa
Location04-cc-680-21.52
CarriesInterstate 680
CrossesBlum Road
Coordinates37.99825, -122.07404

Condition Ratings

Overall ConditionPoor
Deck4 (Poor)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length212.9 ft (64.9 m)
Max Span60.0 ft (18.3 m)
Deck Width131.2 ft (40 m)
Deck Area2,596 sq m
Main Spans4
Year Built1962 (reconstructed 2008)

Traffic

Avg Daily Traffic118,000 (2009)
Truck Traffic6%
Lanes On Bridge9
Lanes Under Bridge2

Inspection & Ownership

Last Inspection125
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number28 0172

Nearby Bridges

SB 680-wb 4 Conn over Blum Road 0.0 mi Good Imhoff Road over Central Sanitary RD 0.2 mi Fair State Route 4 over Interstate Route 680 0.3 mi Fair State Route 4 over Pacheco BLVD 0.4 mi Fair State Route 4 over Grayson Creek 0.5 mi Good Interstate 680 over Grayson Creek 0.6 mi Poor Imhoff Road over Grayson Creek 0.6 mi Fair EB 4-sb 680 Conn over Grayson Creek 0.6 mi Poor Interstate 680 over E Martinez Drain 0.7 mi Good Pacheco BLVD over Grayson Creek 0.8 mi Fair