US Bridges

Is 270 over Branch of Bennett Creek

Fair

Frederick County, Maryland · 0.21 M S of Br No 1017900 · Structure no. 100000100174020

Built
1951
74 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
21 ft
Daily traffic
86,751
2013 count
Owner
State
State Highway Agency

About this bridge

Is 270 over Branch of Bennett Creek is a concrete culvert carrying Is 270 over Branch of Bennett Creek in Frederick County, Maryland. It was built in 1951, so it is 74 years old, older 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 86,751 vehicles a day, projected to reach 48,623 by 2026. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 270
CrossesBranch of Bennett Creek
Location0.21 M S of Br No 1017900
RouteInterstate 270
CountyFrederick County
StateMaryland
Coordinates39.30628, -77.34257
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating56.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20 + Mod
Structure length21 ft (6.3 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 traffic86,751 (2013)
Projected traffic48,623 by 2026
Trucks—
Lanes on structure4
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 270 over Branch of Bennett Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is Is 270 over Branch of Bennett Creek 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 June 2023.

How much traffic does Is 270 over Branch of Bennett Creek carry?

About 86,751 vehicles per day (2013 count).

How long is Is 270 over Branch of Bennett Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns Is 270 over Branch of Bennett Creek?

It is owned by the State Highway Agency.