US Bridges

Industrial Drive over Is 370

Good

Montgomery County, Maryland · 0.51 MI E of Is 270 · Structure no. 100000150155010

Built
1989
36 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
319 ft
2 main spans
Daily traffic
999
1994 count
Owner
State
State Highway Agency

About this bridge

Industrial Drive over Is 370 is a steel continuous stringer/multi-beam or girder carrying Industrial Drive over Is 370 in Montgomery County, Maryland. It was built in 1989, so it is 36 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 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 999 vehicles a day, roughly 5% of them trucks, projected to reach 1,178 by 2012. The structure is 319 ft (97.2 m) long and 63 ft wide.

Location

Open in Google Maps
CarriesIndustrial Drive
CrossesIs 370
Location0.51 MI E of Is 270
RouteCounty Highway 2944
CountyMontgomery County
StateMaryland
Coordinates39.12212, -77.18903
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating62.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length319 ft (97.2 m)
Longest span176 ft (53.6 m)
Deck width63 ft (19.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic999 (1994)
Projected traffic1,178 by 2012
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
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 Industrial Drive over Is 370 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Industrial Drive over Is 370 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 May 2023.

How much traffic does Industrial Drive over Is 370 carry?

About 999 vehicles per day (1994 count), of which roughly 5% are trucks.

How long is Industrial Drive over Is 370?

The structure is 319 ft (97.2 m) long with a longest span of 176 ft (53.6 m) and a deck 63 ft wide.

Who owns Industrial Drive over Is 370?

It is owned by the State Highway Agency.