US Bridges

Md 948AD over Is 68

Good

Allegany County, Maryland · 0.07 Mile North of Md 144 · Structure no. 100000010150010

Built
1990
35 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
2 main spans
Daily traffic
1,314
2009 count
Owner
State
State Highway Agency

About this bridge

Md 948AD over Is 68 is a steel continuous stringer/multi-beam or girder carrying Md 948AD over Is 68 in Allegany County, Maryland. It was built in 1990, so it is 35 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,314 vehicles a day, roughly 5% of them trucks, projected to reach 1,569 by 2026. The structure is 280 ft (85.3 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMd 948AD
CrossesIs 68
Location0.07 Mile North of Md 144
RouteState Highway 948AD
Coordinates39.6941, -78.64968
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating80 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length280 ft (85.3 m)
Longest span137 ft (41.8 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,314 (2009)
Projected traffic1,569 by 2026
Trucks5%
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 948AD over Is 68 built?

It was built in 1990, making it 35 years old in 2025.

What condition is Md 948AD over Is 68 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Md 948AD over Is 68 carry?

About 1,314 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Md 948AD over Is 68?

The structure is 280 ft (85.3 m) long with a longest span of 137 ft (41.8 m) and a deck 37 ft wide.

Who owns Md 948AD over Is 68?

It is owned by the State Highway Agency.