US Bridges

Frontage Road | Ma over East Plum Creek

Good

Douglas County, Colorado · 0.5 MI S of I-25 Tomah · Structure no. DOUMRTNEZ-0.00

Built
1960
65 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
—
2021 count
Owner
County
County Highway Agency

About this bridge

Frontage Road | Ma over East Plum Creek is a steel stringer/multi-beam or girder carrying Frontage Road | Ma over East Plum Creek in Douglas County, Colorado. It was built in 1960, so it is 65 years old, older 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.

No traffic count is recorded. The structure is 32 ft (9.8 m) long and 20 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesFrontage Road | Ma
CrossesEast Plum Creek
Location0.5 MI S of I-25 Tomah
RouteCounty Highway 0
Coordinates39.26379, -104.89374
Functional classRural 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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating99 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span29 ft (8.9 m)
Deck width20 ft (6.1 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Frontage Road | Ma over East Plum Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Frontage Road | Ma over East Plum 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 February 2025.

How much traffic does Frontage Road | Ma over East Plum Creek carry?

No traffic count is recorded for this structure.

How long is Frontage Road | Ma over East Plum Creek?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.9 m) and a deck 20 ft wide.

Who owns Frontage Road | Ma over East Plum Creek?

It is owned by the County Highway Agency.