J13 1st ST over West Fork Grand River

Fair

Union County, Iowa · 070300101 · Structure no. 000000000010230

Built: 1977; 48 years old
Condition: Fair; inspected October 2022
Type: Slab; Concrete Continuous
Length: 127 ft; 3 main spans
Daily traffic: 226; 2022 count
Owner: County; County Highway Agency

About this bridge

J13 1st ST over West Fork Grand River is a concrete continuous slab carrying J13 1st ST over West Fork Grand River in Union County, Iowa. It was built in 1977, so it is 48 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 226 vehicles a day, roughly 13% of them trucks, projected to reach 226 by 2043. The structure is 127 ft (38.7 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesJ13 1st ST

CrossesWest Fork Grand River

Location070300101

RouteCity Street 0

CountyUnion County

StateIowa

Coordinates40.8982, -94.25909

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.

Component	Rating	Meaning
Deck	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionOctober 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 geometry6: Equal to present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating51.7 US tons

Inventory rating30 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 20

Structure length127 ft (38.7 m)

Longest span49 ft (14.9 m)

Deck width32 ft (9.8 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic226 (2022)

Projected traffic226 by 2043

Trucks13%

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 proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was J13 1st ST over West Fork Grand River built?

It was built in 1977, making it 48 years old in 2025.

What condition is J13 1st ST over West Fork Grand River 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 October 2022.

How much traffic does J13 1st ST over West Fork Grand River carry?

About 226 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is J13 1st ST over West Fork Grand River?

The structure is 127 ft (38.7 m) long with a longest span of 49 ft (14.9 m) and a deck 32 ft wide.

Who owns J13 1st ST over West Fork Grand River?

It is owned by the County Highway Agency.