US Bridges

Local over Unnamed Stream

Poor

Keokuk County, Iowa · 076120201 · Structure no. 000000000211881

Built
1971
54 years old, rebuilt 2015
Condition
Poor
inspected March 2023
Type
Channel Beam
Concrete
Length
36 ft
1 main span
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Unnamed Stream is a concrete channel beam carrying Local over Unnamed Stream in Keokuk County, Iowa. It was built in 1971 and reconstructed in 2015, so it is 54 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 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.

It carries about 11 vehicles a day, projected to reach 11 by 2043. The structure is 36 ft (11 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLocal
CrossesUnnamed Stream
Location076120201
RouteCounty Highway 0
CountyKeokuk County
StateIowa
Coordinates41.42395, -92.19392
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.6 US tons
Inventory rating27.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadH 15
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Unnamed Stream built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2015.

What condition is Local over Unnamed Stream 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 March 2023.

How much traffic does Local over Unnamed Stream carry?

About 11 vehicles per day (2022 count).

How long is Local over Unnamed Stream?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 26 ft wide.

Who owns Local over Unnamed Stream?

It is owned by the County Highway Agency.