US Bridges

Winslow RD over Indian Creek

PoorPosted for load

Linn County, Iowa · 084063000 · Structure no. 000000000221471

Built
2002
23 years old
Condition
Poor
inspected April 2022
Type
Slab
Wood or Timber
Length
97 ft
4 main spans
Daily traffic
1,129
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Winslow RD over Indian Creek is a wood or timber slab carrying Winslow RD over Indian Creek in Linn County, Iowa. It was built in 2002, so it is 23 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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: posted for load restriction.

It carries about 1,129 vehicles a day, roughly 6% of them trucks, projected to reach 1,129 by 2043. The structure is 97 ft (29.6 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesWinslow RD
CrossesIndian Creek
Location084063000
RouteCity Street 0
StateIowa
Coordinates42.05951, -91.58856
Functional classUrban Local

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.4 US tons
Inventory rating21.3 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span24 ft (7.3 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,129 (2022)
Projected traffic1,129 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Winslow RD over Indian Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Winslow RD over Indian 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 April 2022.

How much traffic does Winslow RD over Indian Creek carry?

About 1,129 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Winslow RD over Indian Creek?

The structure is 97 ft (29.6 m) long with a longest span of 24 ft (7.3 m) and a deck 31 ft wide.

Who owns Winslow RD over Indian Creek?

It is owned by the City or Municipal Highway Agency.