Local over Halfway Creek

PoorPosted for load

Sac County, Iowa · 089382202 · Structure no. 000000000302030

Built: 1918; 107 years old, rebuilt 1950
Condition: Poor; inspected August 2024
Type: Truss - Thru; Steel
Length: 46 ft; 1 main span
Daily traffic: 50; 2022 count
Owner: County; County Highway Agency

About this bridge

Local over Halfway Creek is a steel truss - thru carrying Local over Halfway Creek in Sac County, Iowa. It was built in 1918 and reconstructed in 1950, so it is 107 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 50 by 2044. The structure is 46 ft (14 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesLocal

CrossesHalfway Creek

Location089382202

RouteCounty Highway 0

CountySac County

StateIowa

Coordinates42.50389, -95.32827

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.

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

Last inspectionAugust 2024

Inspection intervalevery 24 months

Operating statusPosted for load restriction

ScourUnknown foundation; not evaluated for scour

Structural evaluation4: Meets minimum tolerable limits to be left in place as is

Deck geometry3: Basically intolerable, requiring high priority of corrective action

Waterway adequacy6: Equal to present minimum criteria

Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is

Operating rating34.5 US tons

Inventory rating21.9 US tons

Structure

Structure typeTruss - Thru

MaterialSteel

DeckConcrete, cast-in-place

Main spans1

Design loadUnknown

Structure length46 ft (14 m)

Longest span45 ft (13.7 m)

Deck width18 ft (5.5 m)

Roadway width17 ft (5.2 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)

Projected traffic50 by 2044

Trucks0%

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 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 Halfway Creek built?

It was built in 1918, making it 107 years old in 2025. It was reconstructed in 1950.

What condition is Local over Halfway 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 August 2024.

How much traffic does Local over Halfway Creek carry?

About 50 vehicles per day (2022 count).

How long is Local over Halfway Creek?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.7 m) and a deck 18 ft wide.

Who owns Local over Halfway Creek?

It is owned by the County Highway Agency.