US Bridges

Irr# County RD 516 over Dry Creek

Good

La Plata County, Colorado · 5.3 MI S of SH 160 · Structure no. 067031700.9042A

Built
1993
32 years old
Condition
Good
inspected October 2024
Type
Slab
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
455
2022 count
Owner
County
County Highway Agency

About this bridge

Irr# County RD 516 over Dry Creek is a prestressed concrete slab carrying Irr# County RD 516 over Dry Creek in La Plata County, Colorado. It was built in 1993, so it is 32 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 455 vehicles a day, roughly 2% of them trucks, projected to reach 537 by 2042. The structure is 43 ft (13.1 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesIrr# County RD 516
CrossesDry Creek
Location5.3 MI S of SH 160
RouteCounty Highway 0
Coordinates37.15207, -107.61803
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating68.7 US tons
Inventory rating42.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length43 ft (13.1 m)
Longest span40 ft (12.3 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic455 (2022)
Projected traffic537 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Irr# County RD 516 over Dry Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Irr# County RD 516 over Dry 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 October 2024.

How much traffic does Irr# County RD 516 over Dry Creek carry?

About 455 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Irr# County RD 516 over Dry Creek?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.3 m) and a deck 28 ft wide.

Who owns Irr# County RD 516 over Dry Creek?

It is owned by the County Highway Agency.