US Bridges

Mussetter Road over Is 70

Fair

Frederick County, Maryland · 2.11 MI W of Md 75 · Structure no. 100000100157010

Built
1973
52 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
241 ft
2 main spans
Daily traffic
691
1994 count
Owner
State
State Highway Agency

About this bridge

Mussetter Road over Is 70 is a steel continuous stringer/multi-beam or girder carrying Mussetter Road over Is 70 in Frederick County, Maryland. It was built in 1973, so it is 52 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 691 vehicles a day, roughly 5% of them trucks, projected to reach 1,178 by 2012. The structure is 241 ft (73.5 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMussetter Road
CrossesIs 70
Location2.11 MI W of Md 75
RouteCounty Highway 365
Coordinates39.38627, -77.29803
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating56.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length241 ft (73.5 m)
Longest span118 ft (36 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic691 (1994)
Projected traffic1,178 by 2012
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Mussetter Road over Is 70 built?

It was built in 1973, making it 52 years old in 2025.

What condition is Mussetter Road over Is 70 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 March 2023.

How much traffic does Mussetter Road over Is 70 carry?

About 691 vehicles per day (1994 count), of which roughly 5% are trucks.

How long is Mussetter Road over Is 70?

The structure is 241 ft (73.5 m) long with a longest span of 118 ft (36 m) and a deck 47 ft wide.

Who owns Mussetter Road over Is 70?

It is owned by the State Highway Agency.