US Bridges

Is 68 over Little Tonoloway Creek

Good

Washington County, Maryland · 1.46 Miles E of Md 144WB · Structure no. 100000210070020

Built
1965
60 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
341 ft
Daily traffic
19,000
2009 count
Owner
State
State Highway Agency

About this bridge

Is 68 over Little Tonoloway Creek is a concrete culvert carrying Is 68 over Little Tonoloway Creek in Washington County, Maryland. It was built in 1965, so it is 60 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 19,000 vehicles a day, roughly 8% of them trucks, projected to reach 23,118 by 2026. The structure is 341 ft (103.9 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesIs 68
CrossesLittle Tonoloway Creek
Location1.46 Miles E of Md 144WB
RouteInterstate 68
Coordinates39.71271, -78.23016
Functional classRural 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length341 ft (103.9 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,000 (2009)
Projected traffic23,118 by 2026
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Little Tonoloway Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Is 68 over Little Tonoloway Creek 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 Little Tonoloway Creek carry?

About 19,000 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 68 over Little Tonoloway Creek?

The structure is 341 ft (103.9 m) long with a longest span of 15 ft (4.6 m).

Who owns Is 68 over Little Tonoloway Creek?

It is owned by the State Highway Agency.