Is 70 over Blackrock Creek

Good Condition58 years old58,600 vehicles/day

Location

StateMaryland
CountyWashington
Location0.66 Mile East Of Md 66
CarriesIs 70
CrossesBlackrock Creek
Coordinates39.57996, -77.63042

Condition Ratings

Overall ConditionGood
Channel/Waterway7 (Good)
Culvert7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length350.1 ft (106.7 m)
Max Span9.8 ft (3 m)
Deck Area3905.2 sq m
Year Built1968

Traffic

Avg Daily Traffic58,600 (2009)
Truck Traffic8%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number100000210133020

Nearby Bridges

Is 70 EB over Black Rock RD 0.1 mi Good Is 70 WB over Black Rock RD 0.1 mi Good Is 70 Ramp B over Beaver Creek 0.3 mi Good Is 70 WB over Md 66 0.6 mi Fair Is 70 EB over Md 66 0.7 mi Fair Md 66 over Blackrock Creek 0.7 mi Fair Service Road over Beaver Creek 0.7 mi Fair Is 70 WB over Beaver Creek 0.7 mi Fair Is 70 Ramp A over Beaver Creek 0.7 mi Poor Is 70 EB over Beaver Creek 0.7 mi Fair