US Bridges

County RD LL56 over Kerber Creek

Good

Saguache County, Colorado · Just N of First ST · Structure no. BONANZA-1A

Built
1994
31 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
47
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

County RD LL56 over Kerber Creek is a steel stringer/multi-beam or girder carrying County RD LL56 over Kerber Creek in Saguache County, Colorado. It was built in 1994, so it is 31 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 47 vehicles a day, projected to reach 57 by 2042. The structure is 39 ft (12 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesCounty RD LL56
CrossesKerber Creek
LocationJust N of First ST
RouteCity Street 0
Coordinates38.29482, -106.14281
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.4 US tons
Inventory rating30.2 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length39 ft (12 m)
Longest span37 ft (11.3 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47 (2022)
Projected traffic57 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 County RD LL56 over Kerber Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is County RD LL56 over Kerber 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 January 2025.

How much traffic does County RD LL56 over Kerber Creek carry?

About 47 vehicles per day (2022 count).

How long is County RD LL56 over Kerber Creek?

The structure is 39 ft (12 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.

Who owns County RD LL56 over Kerber Creek?

It is owned by the Town or Township Highway Agency.