US Bridges

Md 94 over Is 70

Fair

Howard County, Maryland · 0.40 Mile N of Md 144A · Structure no. 100000130094010

Built
1974
51 years old, rebuilt 2024
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
285 ft
2 main spans
Daily traffic
7,450
2009 count
Owner
State
State Highway Agency

About this bridge

Md 94 over Is 70 is a steel continuous stringer/multi-beam or girder carrying Md 94 over Is 70 in Howard County, Maryland. It was built in 1974 and reconstructed in 2024, so it is 51 years old, younger 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 7,450 vehicles a day, roughly 8% of them trucks, projected to reach 9,040 by 2026. The structure is 285 ft (86.9 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMd 94
CrossesIs 70
Location0.40 Mile N of Md 144A
RouteState Highway 94
CountyHoward County
StateMaryland
Coordinates39.34223, -77.07158
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating74 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length285 ft (86.9 m)
Longest span140 ft (42.7 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,450 (2009)
Projected traffic9,040 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Md 94 over Is 70 built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2024.

What condition is Md 94 over Is 70 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 December 2023.

How much traffic does Md 94 over Is 70 carry?

About 7,450 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 94 over Is 70?

The structure is 285 ft (86.9 m) long with a longest span of 140 ft (42.7 m) and a deck 47 ft wide.

Who owns Md 94 over Is 70?

It is owned by the State Highway Agency.