US Bridges

Sand Hill Road over Is 70

Fair

Howard County, Maryland · 1.19 MI E of Md 32 · Structure no. 100000130081010

Built
1973
52 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
257 ft
2 main spans
Daily traffic
999
1994 count
Owner
State
State Highway Agency

About this bridge

Sand Hill Road over Is 70 is a steel continuous stringer/multi-beam or girder carrying Sand Hill Road over Is 70 in Howard County, Maryland. It was built in 1973, so it is 52 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 5 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 999 vehicles a day, roughly 5% of them trucks, projected to reach 1,178 by 2012. The structure is 257 ft (78.3 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSand Hill Road
CrossesIs 70
Location1.19 MI E of Md 32
RouteCounty Highway 67
CountyHoward County
StateMaryland
Coordinates39.30613, -76.9306
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length257 ft (78.3 m)
Longest span126 ft (38.4 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic999 (1994)
Projected traffic1,178 by 2012
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Sand Hill Road over Is 70 built?

It was built in 1973, making it 52 years old in 2025.

What condition is Sand Hill Road 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 August 2024.

How much traffic does Sand Hill Road over Is 70 carry?

About 999 vehicles per day (1994 count), of which roughly 5% are trucks.

How long is Sand Hill Road over Is 70?

The structure is 257 ft (78.3 m) long with a longest span of 126 ft (38.4 m) and a deck 47 ft wide.

Who owns Sand Hill Road over Is 70?

It is owned by the State Highway Agency.