US Bridges

Local over Phelps Creek

Fair

Grundy County, Iowa · 089160603 · Structure no. 000000000165691

Built
1987
38 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
78 ft
3 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Phelps Creek is a concrete continuous slab carrying Local over Phelps Creek in Grundy County, Iowa. It was built in 1987, so it is 38 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 59 vehicles a day, roughly 58% of them trucks, projected to reach 59 by 2044. The structure is 78 ft (23.8 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLocal
CrossesPhelps Creek
Location089160603
RouteCounty Highway 0
StateIowa
Coordinates42.55584, -92.77504
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.6 US tons
Inventory rating34.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length78 ft (23.8 m)
Longest span29 ft (8.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic59 by 2044
Trucks58%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Phelps Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Local over Phelps Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does Local over Phelps Creek carry?

About 59 vehicles per day (2022 count), of which roughly 58% are trucks.

How long is Local over Phelps Creek?

The structure is 78 ft (23.8 m) long with a longest span of 29 ft (8.8 m) and a deck 27 ft wide.

Who owns Local over Phelps Creek?

It is owned by the County Highway Agency.