US Bridges

SH 7 Ml over South Platte River

Good

Adams County, Colorado · W. Edge of Brighton · Structure no. E-17-ADR

Built
2009
16 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
312 ft
3 main spans
Daily traffic
16,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 7 Ml over South Platte River is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 7 Ml over South Platte River in Adams County, Colorado. It was built in 2009, so it is 16 years old, younger than the Colorado average of 42.2 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 16,000 vehicles a day, roughly 4% of them trucks, projected to reach 21,600 by 2040. The structure is 312 ft (95 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 7 Ml
CrossesSouth Platte River
LocationW. Edge of Brighton
RouteState Highway 7D
Coordinates39.98686, -104.83281
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.4 US tons
Inventory rating48.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length312 ft (95 m)
Longest span107 ft (32.7 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,000 (2020)
Projected traffic21,600 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
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$2.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 7 Ml over South Platte River built?

It was built in 2009, making it 16 years old in 2025.

What condition is SH 7 Ml over South Platte River 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 January 2024.

How much traffic does SH 7 Ml over South Platte River carry?

About 16,000 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SH 7 Ml over South Platte River?

The structure is 312 ft (95 m) long with a longest span of 107 ft (32.7 m) and a deck 47 ft wide.

Who owns SH 7 Ml over South Platte River?

It is owned by the State Highway Agency.