US Bridges

Is 70 WB over CSX Trans.

Fair

Frederick County, Maryland · .09 M E of Bill Moxley RD · Structure no. 100000100039014

Built
1954
71 years old, rebuilt 1974
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
260 ft
3 main spans
Daily traffic
77,985
2024 count
Owner
State
State Highway Agency

About this bridge

Is 70 WB over CSX Trans. is a steel stringer/multi-beam or girder carrying Is 70 WB over CSX Trans. in Frederick County, Maryland. It was built in 1954 and reconstructed in 1974, so it is 71 years old, older than the Maryland average of 52.6 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 77,985 vehicles a day, roughly 8% of them trucks, projected to reach 120,564 by 2046. The structure is 260 ft (79.2 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 70 WB
CrossesCSX Trans.
Location.09 M E of Bill Moxley RD
RouteInterstate 70
CountyFrederick County
StateMaryland
Coordinates39.36703, -77.19375
Functional classRural Principal Arterial - Interstate

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 inspectionSeptember 2024
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 rating94 US tons
Inventory rating56.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span94 ft (28.7 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77,985 (2024)
Projected traffic120,564 by 2046
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 Is 70 WB over CSX Trans. built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1974.

What condition is Is 70 WB over CSX Trans. 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 September 2024.

How much traffic does Is 70 WB over CSX Trans. carry?

About 77,985 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Is 70 WB over CSX Trans.?

The structure is 260 ft (79.2 m) long with a longest span of 94 ft (28.7 m) and a deck 55 ft wide.

Who owns Is 70 WB over CSX Trans.?

It is owned by the State Highway Agency.