US Bridges

Local Road over Branch Otter Creek

PoorPosted for load

Warren County, Iowa · 074232006 · Structure no. 000000000332980

Built
1950
75 years old, rebuilt 1981
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

Local Road over Branch Otter Creek is a steel stringer/multi-beam or girder carrying Local Road over Branch Otter Creek in Warren County, Iowa. It was built in 1950 and reconstructed in 1981, so it is 75 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 3 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 15 vehicles a day, roughly 7% of them trucks, projected to reach 15 by 2044. The structure is 55 ft (16.8 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLocal Road
CrossesBranch Otter Creek
Location074232006
RouteCounty Highway 0
StateIowa
Coordinates41.19538, -93.52934
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating5.5 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1 (+1 approach)
Design loadUnknown
Structure length55 ft (16.8 m)
Longest span39 ft (11.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2044
Trucks7%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$713,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local Road over Branch Otter Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1981.

What condition is Local Road over Branch Otter 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 September 2024.

How much traffic does Local Road over Branch Otter Creek carry?

About 15 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Local Road over Branch Otter Creek?

The structure is 55 ft (16.8 m) long with a longest span of 39 ft (11.9 m) and a deck 24 ft wide.

Who owns Local Road over Branch Otter Creek?

It is owned by the County Highway Agency.