US Bridges

Is 68 over West Trib Flintstone Crk

Fair

Allegany County, Maryland · 1.55 M E of Br No 0114500 · Structure no. 100000010160030

Built
1990
35 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
50 ft
Daily traffic
19,030
2009 count
Owner
State
State Highway Agency

About this bridge

Is 68 over West Trib Flintstone Crk is a steel culvert carrying Is 68 over West Trib Flintstone Crk 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 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 19,030 vehicles a day, roughly 8% of them trucks, projected to reach 26,710 by 2029. The structure is 50 ft (15.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 68
CrossesWest Trib Flintstone Crk
Location1.55 M E of Br No 0114500
RouteInterstate 68
CountyAllegany County
StateMaryland
Coordinates39.70669, -78.58529
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadHS 20
Structure length50 ft (15.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,030 (2009)
Projected traffic26,710 by 2029
Trucks8%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Is 68 over West Trib Flintstone Crk built?

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

What condition is Is 68 over West Trib Flintstone Crk 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 July 2023.

How much traffic does Is 68 over West Trib Flintstone Crk carry?

About 19,030 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 68 over West Trib Flintstone Crk?

The structure is 50 ft (15.1 m) long with a longest span of 10 ft (3 m).

Who owns Is 68 over West Trib Flintstone Crk?

It is owned by the State Highway Agency.