US Bridges

Tower Road over Third Creek

Poor

Adams County, Colorado · 0.7 MI North of 112th Ave · Structure no. COMC-10-0.8-01

Built
1970
55 years old
Condition
Poor
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
18,738
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Tower Road over Third Creek is a prestressed concrete tee beam carrying Tower Road over Third Creek in Adams County, Colorado. It was built in 1970, so it is 55 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, posting recommended but not legally implemented.

It carries about 18,738 vehicles a day, roughly 2% of them trucks, projected to reach 24,360 by 2041. The structure is 40 ft (12.3 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTower Road
CrossesThird Creek
Location0.7 MI North of 112th Ave
RouteCity Street 0
Coordinates39.90864, -104.77131
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 6 months
Operating statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.7 US tons
Inventory rating0.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span38 ft (11.7 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,738 (2021)
Projected traffic24,360 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$212,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Tower Road over Third Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Tower Road over Third Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does Tower Road over Third Creek carry?

About 18,738 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Tower Road over Third Creek?

The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.7 m) and a deck 30 ft wide.

Who owns Tower Road over Third Creek?

It is owned by the City or Municipal Highway Agency.