US Bridges

Md 10 Sbr over Md 177

Fair

Anne Arundel County, Maryland · 0.17 MI N of Md 100 · Structure no. 100000020172012

Built
1988
37 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
290 ft
4 main spans
Daily traffic
43,170
2009 count
Owner
State
State Highway Agency

About this bridge

Md 10 Sbr over Md 177 is a steel continuous stringer/multi-beam or girder carrying Md 10 Sbr over Md 177 in Anne Arundel County, Maryland. It was built in 1988, so it is 37 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 43,170 vehicles a day, roughly 8% of them trucks, projected to reach 27,453 by 2026. The structure is 290 ft (88.4 m) long and 42 ft wide.

CarriesMd 10 Sbr
CrossesMd 177
Location0.17 MI N of Md 100
RouteState Highway 10
Coordinates39.13491, -76.58895
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.4 US tons
Inventory rating41.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length290 ft (88.4 m)
Longest span82 ft (25 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,170 (2009)
Projected traffic27,453 by 2026
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 Md 10 Sbr over Md 177 built?

It was built in 1988, making it 37 years old in 2025.

What condition is Md 10 Sbr over Md 177 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 September 2023.

How much traffic does Md 10 Sbr over Md 177 carry?

About 43,170 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 10 Sbr over Md 177?

The structure is 290 ft (88.4 m) long with a longest span of 82 ft (25 m) and a deck 42 ft wide.

Who owns Md 10 Sbr over Md 177?

It is owned by the State Highway Agency.