FM over Trib. of Beaver Creek

Poor

Boone County, Iowa · 082280305 · Structure no. 000000000077210

Built: 1948; 77 years old
Condition: Poor; inspected May 2024
Type: Culvert; Concrete Continuous
Length: 24 ft; 1 main span
Daily traffic: 279; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Trib. of Beaver Creek is a concrete continuous culvert carrying FM over Trib. of Beaver Creek in Boone County, Iowa. It was built in 1948, so it is 77 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 279 vehicles a day, roughly 9% of them trucks, projected to reach 279 by 2044. The structure is 24 ft (7.3 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesFM

CrossesTrib. of Beaver Creek

Location082280305

RouteCounty Highway 0

CountyBoone County

StateIowa

Coordinates41.95016, -94.09062

Functional classRural Major Collector

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.

Component	Rating	Meaning
Channel and channel protection	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert	4 Poor	Advanced section loss, deterioration, spalling or scour.

Last inspectionMay 2024

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 alignment7: Better than present minimum criteria

Operating rating55.7 US tons

Inventory rating33.4 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans1

Design loadH 20

Structure length24 ft (7.3 m)

Longest span10 ft (3 m)

Deck width28 ft (8.5 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic279 (2022)

Projected traffic279 by 2044

Trucks9%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed5 mi (8 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 FM over Trib. of Beaver Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is FM over Trib. of Beaver 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 May 2024.

How much traffic does FM over Trib. of Beaver Creek carry?

About 279 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is FM over Trib. of Beaver Creek?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns FM over Trib. of Beaver Creek?

It is owned by the County Highway Agency.