US Bridges

County Rd. E-45 over North Fork Walnut Creek

Fair

Jones County, Iowa · 083041003 · Structure no. 000000000206740

Built
1966
59 years old
Condition
Fair
inspected December 2022
Type
Slab
Concrete Continuous
Length
77 ft
3 main spans
Daily traffic
570
2022 count
Owner
County
County Highway Agency

About this bridge

County Rd. E-45 over North Fork Walnut Creek is a concrete continuous slab carrying County Rd. E-45 over North Fork Walnut Creek in Jones County, Iowa. It was built in 1966, so it is 59 years old, older 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 5 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 570 vehicles a day, roughly 17% of them trucks, projected to reach 570 by 2043. The structure is 77 ft (23.5 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Rd. E-45
CrossesNorth Fork Walnut Creek
Location083041003
RouteCounty Highway 0
CountyJones County
StateIowa
Coordinates42.02028, -91.29461
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.9 US tons
Inventory rating29.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length77 ft (23.5 m)
Longest span29 ft (8.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic570 (2022)
Projected traffic570 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Rd. E-45 over North Fork Walnut Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is County Rd. E-45 over North Fork Walnut 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 December 2022.

How much traffic does County Rd. E-45 over North Fork Walnut Creek carry?

About 570 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is County Rd. E-45 over North Fork Walnut Creek?

The structure is 77 ft (23.5 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.

Who owns County Rd. E-45 over North Fork Walnut Creek?

It is owned by the County Highway Agency.