US Bridges

Traer ST over Ovrflw Shell Rock River

PoorClosed to traffic

Butler County, Iowa · 093170105 · Structure no. 000000000005660

Built
1900
125 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
72 ft
2 main spans
Daily traffic
1,902
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Traer ST over Ovrflw Shell Rock River is a steel stringer/multi-beam or girder carrying Traer ST over Ovrflw Shell Rock River in Butler County, Iowa. It was built in 1900, so it is 125 years old, older 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 0 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: closed to all traffic.

It carries about 1,902 vehicles a day, projected to reach 1,902 by 2044. The structure is 72 ft (21.9 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTraer ST
CrossesOvrflw Shell Rock River
Location093170105
RouteCity Street 0
StateIowa
Coordinates42.89319, -92.8062
Functional classRural 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
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating29 US tons
Inventory rating13 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length72 ft (21.9 m)
Longest span34 ft (10.4 m)
Deck width38 ft (11.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,902 (2022)
Projected traffic1,902 by 2044
Trucks0%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$255,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Traer ST over Ovrflw Shell Rock River built?

It was built in 1900, making it 125 years old in 2025.

What condition is Traer ST over Ovrflw Shell Rock River 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 2024.

How much traffic does Traer ST over Ovrflw Shell Rock River carry?

About 1,902 vehicles per day (2022 count).

How long is Traer ST over Ovrflw Shell Rock River?

The structure is 72 ft (21.9 m) long with a longest span of 34 ft (10.4 m) and a deck 38 ft wide.

Who owns Traer ST over Ovrflw Shell Rock River?

It is owned by the City or Municipal Highway Agency.