US Bridges

Is 68 over US 40 Alt/Md 639

Good

Allegany County, Maryland · 0.92 Mile West of Md 952 · Structure no. 100000010093010

Built
2019
6 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
150 ft
3 main spans
Daily traffic
27,462
2009 count
Owner
State
State Highway Agency

About this bridge

Is 68 over US 40 Alt/Md 639 is a steel stringer/multi-beam or girder carrying Is 68 over US 40 Alt/Md 639 in Allegany County, Maryland. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 27,462 vehicles a day, roughly 21% of them trucks, projected to reach 61,250 by 2031. The structure is 150 ft (45.7 m) long and 81 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 68
CrossesUS 40 Alt/Md 639
Location0.92 Mile West of Md 952
RouteInterstate 68
CountyAllegany County
StateMaryland
Coordinates39.65671, -78.74823
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length150 ft (45.7 m)
Longest span84 ft (25.6 m)
Deck width81 ft (24.8 m)
Roadway width75 ft (22.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,462 (2009)
Projected traffic61,250 by 2031
Trucks21%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 68 over US 40 Alt/Md 639 built?

It was built in 2019, making it 6 years old in 2025.

What condition is Is 68 over US 40 Alt/Md 639 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 February 2024.

How much traffic does Is 68 over US 40 Alt/Md 639 carry?

About 27,462 vehicles per day (2009 count), of which roughly 21% are trucks.

How long is Is 68 over US 40 Alt/Md 639?

The structure is 150 ft (45.7 m) long with a longest span of 84 ft (25.6 m) and a deck 81 ft wide.

Who owns Is 68 over US 40 Alt/Md 639?

It is owned by the State Highway Agency.