US Bridges

Md 496 over Big Pipe Creek

Good

Carroll County, Maryland · 3.52 Milei West of Md 30 · Structure no. 100000060038010

Built
2018
7 years old
Condition
Good
inspected September 2024
Type
Slab
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
3,975
2016 count
Owner
State
State Highway Agency

About this bridge

Md 496 over Big Pipe Creek is a prestressed concrete slab carrying Md 496 over Big Pipe Creek in Carroll County, Maryland. It was built in 2018, so it is 7 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 3,975 vehicles a day, roughly 7% of them trucks, projected to reach 5,575 by 2036. The structure is 58 ft (17.7 m) long and 45 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMd 496
CrossesBig Pipe Creek
Location3.52 Milei West of Md 30
RouteState Highway 496
Coordinates39.66098, -76.94822
Functional classRural Major Collector

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.1 US tons
Inventory rating75 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length58 ft (17.7 m)
Longest span55 ft (16.8 m)
Deck width45 ft (13.7 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,975 (2016)
Projected traffic5,575 by 2036
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Md 496 over Big Pipe Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Md 496 over Big Pipe 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 September 2024.

How much traffic does Md 496 over Big Pipe Creek carry?

About 3,975 vehicles per day (2016 count), of which roughly 7% are trucks.

How long is Md 496 over Big Pipe Creek?

The structure is 58 ft (17.7 m) long with a longest span of 55 ft (16.8 m) and a deck 45 ft wide.

Who owns Md 496 over Big Pipe Creek?

It is owned by the State Highway Agency.