US Bridges

Mountain Road over Is 68

Good

Allegany County, Maryland · At Is 68 · Structure no. 100000010101010

Built
1968
57 years old, rebuilt 1975
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
170 ft
2 main spans
Daily traffic
999
1994 count
Owner
State
State Highway Agency

About this bridge

Mountain Road over Is 68 is a steel continuous stringer/multi-beam or girder carrying Mountain Road over Is 68 in Allegany County, Maryland. It was built in 1968 and reconstructed in 1975, so it is 57 years old, older 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 999 vehicles a day, roughly 5% of them trucks, projected to reach 590 by 2012. The structure is 170 ft (51.8 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMountain Road
CrossesIs 68
LocationAt Is 68
RouteCounty Highway 745
CountyAllegany County
StateMaryland
Coordinates39.66381, -78.42175
Functional classRural Local

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length170 ft (51.8 m)
Longest span83 ft (25.3 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic999 (1994)
Projected traffic590 by 2012
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$328,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mountain Road over Is 68 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1975.

What condition is Mountain Road 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 April 2023.

How much traffic does Mountain Road over Is 68 carry?

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

How long is Mountain Road over Is 68?

The structure is 170 ft (51.8 m) long with a longest span of 83 ft (25.3 m) and a deck 29 ft wide.

Who owns Mountain Road over Is 68?

It is owned by the State Highway Agency.