US Bridges

Tomah Road over I 25 Ml

Fair

Douglas County, Colorado · 1.9 MI N of JCT S.H. 18 · Structure no. G-17-AJ

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
202 ft
4 main spans
Daily traffic
1,810
2024 count
Owner
State
State Highway Agency

About this bridge

Tomah Road over I 25 Ml is a concrete continuous tee beam carrying Tomah Road over I 25 Ml in Douglas County, Colorado. It was built in 1965, so it is 60 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 1,810 vehicles a day, roughly 13% of them trucks, projected to reach 2,426 by 2044. The structure is 202 ft (61.6 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesTomah Road
CrossesI 25 Ml
Location1.9 MI N of JCT S.H. 18
RouteCounty Highway 0
CountyDouglas County
StateColorado
Coordinates39.26763, -104.89654
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.7 US tons
Inventory rating35.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length202 ft (61.6 m)
Longest span62 ft (18.9 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,810 (2024)
Projected traffic2,426 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$926,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Tomah Road over I 25 Ml built?

It was built in 1965, making it 60 years old in 2025.

What condition is Tomah Road over I 25 Ml 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 May 2023.

How much traffic does Tomah Road over I 25 Ml carry?

About 1,810 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Tomah Road over I 25 Ml?

The structure is 202 ft (61.6 m) long with a longest span of 62 ft (18.9 m) and a deck 32 ft wide.

Who owns Tomah Road over I 25 Ml?

It is owned by the State Highway Agency.