culvert.c File Reference

Culvert inlet control and hydraulic flow calculations. More...

#include <math.h>
#include "findroot.h"
#include "headers.h"

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Classes
struct	TCulvert

Macros
#define	_CRT_SECURE_NO_DEPRECATE

Enumerations
enum	CulvertParam {   FORM ,   K ,   M ,   C ,   Y }

Functions
double	culvert_getInflow (int j, double q0, double h)
	Uses FHWA HEC-5 equations to find flow through inlet controlled culverts.

Detailed Description

Culvert inlet control and hydraulic flow calculations.

Author

Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com (OpenSWMM maintenance and extensions)

Copyright

Copyright (c) 2026 Caleb Buahin. OpenSWMM contributions only; original EPA SWMM credits are retained.

License

Apache-2.0 for OpenSWMM contributions; original EPA SWMM provenance is retained.

Macro Definition Documentation

_CRT_SECURE_NO_DEPRECATE

#define _CRT_SECURE_NO_DEPRECATE

Enumeration Type Documentation

CulvertParam

enum CulvertParam

Enumerator
FORM
K
M
C
Y

Function Documentation

culvert_getInflow()

double culvert_getInflow	(	int	j,
		double	q0,
		double	h )

Uses FHWA HEC-5 equations to find flow through inlet controlled culverts.

Parameters

[in]	j	Link index.
[in]	q0	Unmodified flow rate (cfs).
[in]	h	Upstream head (ft).

Returns

Modified flow rate through culvert (cfs).

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