US Bridges

Sidney ST over Rio Grande Creek

Good

Lyon County, Iowa · 098440206 · Structure no. 000000000005521

Built
2011
14 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
232
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sidney ST over Rio Grande Creek is a concrete continuous culvert carrying Sidney ST over Rio Grande Creek in Lyon County, Iowa. It was built in 2011, so it is 14 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 232 vehicles a day, projected to reach 232 by 2044. The structure is 29 ft (8.8 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSidney ST
CrossesRio Grande Creek
Location098440206
RouteCity Street 0
CountyLyon County
StateIowa
Coordinates43.34085, -96.00383
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width57 ft (17.4 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic232 (2022)
Projected traffic232 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sidney ST over Rio Grande Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is Sidney ST over Rio Grande 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 July 2024.

How much traffic does Sidney ST over Rio Grande Creek carry?

About 232 vehicles per day (2022 count).

How long is Sidney ST over Rio Grande Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 57 ft wide.

Who owns Sidney ST over Rio Grande Creek?

It is owned by the City or Municipal Highway Agency.